VIOFO A139 PRO 2CH First 4K HDR Front and Rear Dashcam with the Newest Sony STARVIS 2 IMX678 Sensor
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VIOFO A139 Pro 2CH 4K front and 2K rear dual dash cam with slim coaxial cable
VIOFO A139 PRO 2CH First 4K HDR Front and Rear Dashcam with the Newest Sony STARVIS 2 IMX678 Sensor - Viofo - official
VIOFO A139 PRO 2CH First 4K HDR Front and Rear Dashcam with the Newest Sony STARVIS 2 IMX678 Sensor - Viofo - official
VIOFO A139 PRO 2CH First 4K HDR Front and Rear Dashcam with the Newest Sony STARVIS 2 IMX678 Sensor - Viofo - official
VIOFO A139 PRO 2CH First 4K HDR Front and Rear Dashcam with the Newest Sony STARVIS 2 IMX678 Sensor - Viofo - official
VIOFO A139 PRO 2CH First 4K HDR Front and Rear Dashcam with the Newest Sony STARVIS 2 IMX678 Sensor - Viofo - official
VIOFO A139 PRO 2CH First 4K HDR Front and Rear Dashcam with the Newest Sony STARVIS 2 IMX678 Sensor - Viofo - official
VIOFO A139 PRO 2CH First 4K HDR Front and Rear Dashcam with the Newest Sony STARVIS 2 IMX678 Sensor - Viofo - official
VIOFO A139 PRO 2CH First 4K HDR Front and Rear Dashcam with the Newest Sony STARVIS 2 IMX678 Sensor - Viofo - official
VIOFO A139 PRO 2CH First 4K HDR Front and Rear Dashcam with the Newest Sony STARVIS 2 IMX678 Sensor - Viofo - official
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VIOFO A139 PRO 2CH First 4K HDR Front and Rear Dashcam with the Newest Sony STARVIS 2 IMX678 Sensor

$249.99 $329.99
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Optional Accessories

VIOFO Industrial Grade microSD Card, U3 A2 V30 High Speed Memory Card with Adapter, 64GB / 128GB / 256GB / 512GB Optional

VIOFO Industrial Grade microSD Card, U3 A2 V30 High Speed Memory Card with Adapter, 64GB / 128GB / 256GB / 512GB Optional

$39.99
More Details

64GB

VIOFO industrial grade microSD card for extended endurance, excellent performance, and reliability.

Especially for high durability applications, ideal microSD card for dash and action cameras. Suitable for harsh conditions, waterproof, anti-X-ray, and anti-magnetic.

Transfer speeds of up to 100MB/s. Support Ultra HD 4K recording.

Take full advantage of ultra-high speed transfer rates, transferring files between card and computer will be quick and seamless.

64GB

128GB

VIOFO industrial grade microSD card for extended endurance, excellent performance, and reliability.

Especially for high durability applications, ideal microSD card for dash and action cameras. Suitable for harsh conditions, waterproof, anti-X-ray, and anti-magnetic.

Transfer speeds of up to 100MB/s. Support Ultra HD 4K recording.

Take full advantage of ultra-high speed transfer rates, transferring files between card and computer will be quick and seamless.

128GB

256GB

VIOFO industrial grade microSD card for extended endurance, excellent performance, and reliability.

Especially for high durability applications, ideal microSD card for dash and action cameras. Suitable for harsh conditions, waterproof, anti-X-ray, and anti-magnetic.

Transfer speeds of up to 100MB/s. Support Ultra HD 4K recording.

Take full advantage of ultra-high speed transfer rates, transferring files between card and computer will be quick and seamless.

256GB

512GB

VIOFO industrial grade microSD card for extended endurance, excellent performance, and reliability.

Especially for high durability applications, ideal microSD card for dash and action cameras. Suitable for harsh conditions, waterproof, anti-X-ray, and anti-magnetic.

Transfer speeds of up to 100MB/s. Support Ultra HD 4K recording.

Take full advantage of ultra-high speed transfer rates, transferring files between card and computer will be quick and seamless.

512GB
VIOFO HK3-C Type-C Hardwire Kit for A139/A139 PRO 1CH/2CH/3CH Dash Camera

VIOFO HK3-C Type-C Hardwire Kit for A139/A139 PRO 1CH/2CH/3CH Dash Camera

$17.99 $17.99
More Details

Not Included

HK3-C Hardwire Kit is Type-C USB Port and is used in A139/A139 PRO Dash Camera.

Note: Fuse Tap is not included, check with your local car service shop or measure the size to confirm the type to use.

If still unsure, consider this Full Set Fuse Tap with ATO, Mini, Micro2, Mini Low Profile Adapter Holder.

HK3-C isn't compatible with Mini Port A119V3/A129 Duo/A129 Duo IR/A129 Pro Duo/A129 Plus Duo Dash Camera.

The total length of the hardwire kit: 13.1 Feet/4M

Not Included

2PCS MINI (ATS) Fuse

HK3-C Hardwire Kit is Type-C USB Port and is used in A139/A139 PRO Dash Camera.

Note: Fuse Tap is not included, check with your local car service shop or measure the size to confirm the type to use.

If still unsure, consider this Full Set Fuse Tap with ATO, Mini, Micro2, Mini Low Profile Adapter Holder.

HK3-C isn't compatible with Mini Port A119V3/A129 Duo/A129 Duo IR/A129 Pro Duo/A129 Plus Duo Dash Camera.

The total length of the hardwire kit: 13.1 Feet/4M

2PCS MINI (ATS) Fuse

2PCS ATO (ATC) Fuse

HK3-C Hardwire Kit is Type-C USB Port and is used in A139/A139 PRO Dash Camera.

Note: Fuse Tap is not included, check with your local car service shop or measure the size to confirm the type to use.

If still unsure, consider this Full Set Fuse Tap with ATO, Mini, Micro2, Mini Low Profile Adapter Holder.

HK3-C isn't compatible with Mini Port A119V3/A129 Duo/A129 Duo IR/A129 Pro Duo/A129 Plus Duo Dash Camera.

The total length of the hardwire kit: 13.1 Feet/4M

2PCS ATO (ATC) Fuse

2PCS Mini Low Profile Fuse

HK3-C Hardwire Kit is Type-C USB Port and is used in A139/A139 PRO Dash Camera.

Note: Fuse Tap is not included, check with your local car service shop or measure the size to confirm the type to use.

If still unsure, consider this Full Set Fuse Tap with ATO, Mini, Micro2, Mini Low Profile Adapter Holder.

HK3-C isn't compatible with Mini Port A119V3/A129 Duo/A129 Duo IR/A129 Pro Duo/A129 Plus Duo Dash Camera.

The total length of the hardwire kit: 13.1 Feet/4M

2PCS Mini Low Profile Fuse

2PCS Micro 2 Fuse

HK3-C Hardwire Kit is Type-C USB Port and is used in A139/A139 PRO Dash Camera.

Note: Fuse Tap is not included, check with your local car service shop or measure the size to confirm the type to use.

If still unsure, consider this Full Set Fuse Tap with ATO, Mini, Micro2, Mini Low Profile Adapter Holder.

HK3-C isn't compatible with Mini Port A119V3/A129 Duo/A129 Duo IR/A129 Pro Duo/A129 Plus Duo Dash Camera.

The total length of the hardwire kit: 13.1 Feet/4M

2PCS Micro 2 Fuse
VIOFO 4PCS*2 Packs Circuit Fuse Tap with ATO, Mini, Micro2, Mini Low Profile Adapter Holder

VIOFO 4PCS*2 Packs Circuit Fuse Tap with ATO, Mini, Micro2, Mini Low Profile Adapter Holder

$15.99
More Details

VIOFO 4PCS*2 Packs Circuit Fuse Tap with ATO, Mini, Micro2, Mini Low Profile Adapter Holder

The VIOFO 4PCS x 2 Packs Circuit Fuse Tap Kit is a comprehensive fuse tap bundle for connecting VIOFO hardwire kits to your vehicle's fuse box. With 8 fuse taps total and adapters for all common fuse types, this kit is perfect for multi-vehicle installations, professional installers, or keeping spares on hand.

Key Features:

  • 8 circuit fuse taps total (4 pieces x 2 packs) — enough for multiple vehicles or installations
  • Complete fuse type adapter coverage: ATO, Mini, Micro2, Micro3, and Low-Profile Mini
  • Works with all VIOFO hardwire kits for permanent, clean power installations
  • Frees up the cigarette lighter socket for phone chargers or other accessories
  • Great value for professional installers or multi-car households

What's Included:

  • 2 packs of 4 circuit fuse taps each (8 total)
  • Fuse type adapters: ATO, Mini, Micro2, Micro3, Low-Profile Mini

Ideal For:

  • Professional dash cam installers who serve multiple customers
  • Households with multiple vehicles needing hardwire installations
  • Anyone who wants to keep spare fuse taps for future use

Important: Different vehicles use different fuse types. Consult your vehicle owner's manual or a local automotive service shop to identify the correct fuse type for your car. Fuse taps are used together with a VIOFO hardwire kit (sold separately) — the fuse taps alone do not power the camera.

VIOFO 4PCS*2 Packs Circuit Fuse Tap with ATO, Mini, Micro2, Mini Low Profile Adapter Holder
VIOFO Upgraded Version BTR200 Wireless Bluetooth Remote Control

VIOFO Upgraded Version BTR200 Wireless Bluetooth Remote Control

$19.99
More Details

VIOFO Upgraded Version BTR200 Wireless Bluetooth Remote Control

【Easy to Use】Just simply press on the remote, important videos can be saved and locked, which lets you drive more safely. You can stick it to a suitable location on your dashboard, and the small body would keep the original appearance inside your car.

【Simple Pairing】Power on the camera and press the video lock button on the remote control for 3 seconds to pair the camera. The LED indicator on the remote will turn blue if paired successfully. With Event Locking, MIC&Wi-Fi&HDR ON/Off Function.

【Free Battery Included】There is a free extra battery in the package, you can install it when the first battery runs out. Batteries are not able to be charged.

 

 

VIOFO Upgraded Version BTR200 Wireless Bluetooth Remote Control
VIOFO CPL-300 Filter For Rear Camera of A229/A229 Plus/A229 Pro/A139/A139 Pro/T130

VIOFO CPL-300 Filter For Rear Camera of A229/A229 Plus/A229 Pro/A139/A139 Pro/T130

$12.99
More Details

VIOFO CPL-300 Filter For Rear Camera of A229/A229 Plus/A229 Pro/A139/A139 Pro/T130

  • The CPL Filter is compatible with the A229/A229 Plus/A229 Pro/A139/A139 Pro/T130 Rear Camera.
  • Protect the camera lens from fingerprints, scratches, and dirt destroying.
  • Reduce reflections and glare from glass, metals, or shiny surfaces that would damage image quality.
  • Make colors more saturated and videos more beautiful.
  • It can be used during the daytime and at night. 
VIOFO CPL-300 Filter For Rear Camera of A229/A229 Plus/A229 Pro/A139/A139 Pro/T130
Universal Professional Lavalier Microphone Omnidirectional Mic for Smartphone, PC, Laptop, Camera, DSLR, Audio Recorder

Universal Professional Lavalier Microphone Omnidirectional Mic for Smartphone, PC, Laptop, Camera, DSLR, Audio Recorder

$19.99
More Details

Universal Professional Lavalier Microphone Omnidirectional Mic for Smartphone, PC, Laptop, Camera, DSLR, Audio Recorder

The VIOFO Universal Professional Lavalier Microphone is an external omnidirectional microphone that significantly improves in-cabin audio recording quality on compatible VIOFO dash cams. Ideal for rideshare drivers, fleet operators, and anyone who needs clear voice capture inside the vehicle.

Key Features:

  • 3.5mm audio jack — simple plug-and-play connection, no software setup required
  • Omnidirectional pickup pattern captures voices from all directions inside the cabin
  • Clip-on design — easily mounts on the sun visor, headliner, or dashboard
  • Dramatically clearer voice recording compared to the camera's built-in microphone

Ideal For:

  • Uber, Lyft, and taxi drivers who want clear passenger audio for safety documentation
  • Fleet vehicles where in-cabin conversations need to be recorded
  • Anyone who wants higher-quality audio than the built-in dash cam microphone provides

Compatible With:

  • VIOFO dash cams equipped with a 3.5mm external microphone input (e.g., A139, A229 Duo)

Important: Please verify that your specific VIOFO dash cam model has a 3.5mm external microphone jack before purchasing. Not all models support external microphone input.

What's in the Box: 1x lavalier microphone with 3.5mm plug and mounting clip.

Universal Professional Lavalier Microphone Omnidirectional Mic for Smartphone, PC, Laptop, Camera, DSLR, Audio Recorder
A139/A139 PRO Screw Mounting Bracket for Tamper-proof Security Guard Installation

A139/A139 PRO Screw Mounting Bracket for Tamper-proof Security Guard Installation

$10.00
More Details

A139/A139 PRO Screw Mounting Bracket for Tamper-proof Security Guard Installation

Tamper-proof Security Guard Installation helps to prevent unauthorized unplugging of the power cable, rear& interior cables, as well as the memory card.

A139/A139 PRO Screw Mounting Bracket for Tamper-proof Security Guard Installation
More Accessories
Subtotal
$249.99 $329.99

Product Information

  • Channels2-Channel
  • ChipsetNovatek
  • SensorFront: Sony STARVIS 2 8MP IMX678 / Rear: Sony STARVIS 2MP IMX291
  • Video Resolution4K 30fps + 1080P 30fps
  • WDR / HDRFront HDR Supported
  • LensFront: F1.6 Aperture, FOV=140°/ Rear: F1.6 Aperture, FOV=165°
  • Wi-Fi2.4GHz & 5GHz
  • Parking ModeSupported (Auto Event Detection / Time-lapse Recording / Low Bitrate Recording)
  • Buffered Parking ModeSupported
  • G-sensorLow / Middle / High Sensitivity
  • Time-Lapse RecordingOff / 100 ms / 200 ms / 1 Second / 2 Seconds / 5 Seconds / 10 Seconds / 30 Seconds / 3 Minutes / 5 Minutes / 10 Minutes
  • Loop RecordingOff / 1 min / 2 min / 3 min / 5 min / 10 min
  • GPS LoggerBuilt-in
  • Voice NotificationSupported
  • Voice ControlNot Supported
  • MicrophoneBuilt-in
  • SpeakerBuilt-in
  • CPLFront: CPL-200 Included / Rear: CPL-300 (Optional)
  • BluetoothBuilt-in, support BTR200 (Optional)
  • Hardwire KitHK3-C or HK4 (Optional)
  • Micro SD CardUp to external 512GB microSD Card (Optional)
  • Video FormatMP4
  • Image FormatJPEG
  • Frequency50 / 60 Hz
  • DisplayNo Screen
  • USB PortUSB Type-C Port
  • LED IndicatorsRecording LED, Wi-Fi LED, Microphone LED, GPS LED
  • Battery & ChargingNO Battery, built-in Super Capacitor
  • Input PowerDC 5V / 2A
  • Operating Temperature-20°C~65°C
  • Storage Temperature-20°C~70°C
  • SizeFront: 4.42 × 1.56 × 2.38 inch / Rear: 2.64× 1.10 × 1.33 inch

Dash Cams Comparisons

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Accessories

VIOFO Industrial Grade microSD Card, U3 A2 V30 High Speed Memory Card with Adapter, 64GB / 128GB / 256GB / 512GB Optional

VIOFO Industrial Grade microSD Card, U3 A2 V30

$39.99
More Details

64GB

VIOFO industrial grade microSD card for extended endurance, excellent performance, and reliability.

Especially for high durability applications, ideal microSD card for dash and action cameras. Suitable for harsh conditions, waterproof, anti-X-ray, and anti-magnetic.

Transfer speeds of up to 100MB/s. Support Ultra HD 4K recording.

Take full advantage of ultra-high speed transfer rates, transferring files between card and computer will be quick and seamless.

64GB

128GB

VIOFO industrial grade microSD card for extended endurance, excellent performance, and reliability.

Especially for high durability applications, ideal microSD card for dash and action cameras. Suitable for harsh conditions, waterproof, anti-X-ray, and anti-magnetic.

Transfer speeds of up to 100MB/s. Support Ultra HD 4K recording.

Take full advantage of ultra-high speed transfer rates, transferring files between card and computer will be quick and seamless.

128GB

256GB

VIOFO industrial grade microSD card for extended endurance, excellent performance, and reliability.

Especially for high durability applications, ideal microSD card for dash and action cameras. Suitable for harsh conditions, waterproof, anti-X-ray, and anti-magnetic.

Transfer speeds of up to 100MB/s. Support Ultra HD 4K recording.

Take full advantage of ultra-high speed transfer rates, transferring files between card and computer will be quick and seamless.

256GB

512GB

VIOFO industrial grade microSD card for extended endurance, excellent performance, and reliability.

Especially for high durability applications, ideal microSD card for dash and action cameras. Suitable for harsh conditions, waterproof, anti-X-ray, and anti-magnetic.

Transfer speeds of up to 100MB/s. Support Ultra HD 4K recording.

Take full advantage of ultra-high speed transfer rates, transferring files between card and computer will be quick and seamless.

512GB
VIOFO HK3-C Type-C Hardwire Kit for A139/A139 PRO 1CH/2CH/3CH Dash Camera

VIOFO HK3-C Type-C Hardwire Kit for A139/A139

$17.99
More Details

Not Included

HK3-C Hardwire Kit is Type-C USB Port and is used in A139/A139 PRO Dash Camera.

Note: Fuse Tap is not included, check with your local car service shop or measure the size to confirm the type to use.

If still unsure, consider this Full Set Fuse Tap with ATO, Mini, Micro2, Mini Low Profile Adapter Holder.

HK3-C isn't compatible with Mini Port A119V3/A129 Duo/A129 Duo IR/A129 Pro Duo/A129 Plus Duo Dash Camera.

The total length of the hardwire kit: 13.1 Feet/4M

Not Included

2PCS MINI (ATS) Fuse

HK3-C Hardwire Kit is Type-C USB Port and is used in A139/A139 PRO Dash Camera.

Note: Fuse Tap is not included, check with your local car service shop or measure the size to confirm the type to use.

If still unsure, consider this Full Set Fuse Tap with ATO, Mini, Micro2, Mini Low Profile Adapter Holder.

HK3-C isn't compatible with Mini Port A119V3/A129 Duo/A129 Duo IR/A129 Pro Duo/A129 Plus Duo Dash Camera.

The total length of the hardwire kit: 13.1 Feet/4M

2PCS MINI (ATS) Fuse

2PCS ATO (ATC) Fuse

HK3-C Hardwire Kit is Type-C USB Port and is used in A139/A139 PRO Dash Camera.

Note: Fuse Tap is not included, check with your local car service shop or measure the size to confirm the type to use.

If still unsure, consider this Full Set Fuse Tap with ATO, Mini, Micro2, Mini Low Profile Adapter Holder.

HK3-C isn't compatible with Mini Port A119V3/A129 Duo/A129 Duo IR/A129 Pro Duo/A129 Plus Duo Dash Camera.

The total length of the hardwire kit: 13.1 Feet/4M

2PCS ATO (ATC) Fuse

2PCS Mini Low Profile Fuse

HK3-C Hardwire Kit is Type-C USB Port and is used in A139/A139 PRO Dash Camera.

Note: Fuse Tap is not included, check with your local car service shop or measure the size to confirm the type to use.

If still unsure, consider this Full Set Fuse Tap with ATO, Mini, Micro2, Mini Low Profile Adapter Holder.

HK3-C isn't compatible with Mini Port A119V3/A129 Duo/A129 Duo IR/A129 Pro Duo/A129 Plus Duo Dash Camera.

The total length of the hardwire kit: 13.1 Feet/4M

2PCS Mini Low Profile Fuse

2PCS Micro 2 Fuse

HK3-C Hardwire Kit is Type-C USB Port and is used in A139/A139 PRO Dash Camera.

Note: Fuse Tap is not included, check with your local car service shop or measure the size to confirm the type to use.

If still unsure, consider this Full Set Fuse Tap with ATO, Mini, Micro2, Mini Low Profile Adapter Holder.

HK3-C isn't compatible with Mini Port A119V3/A129 Duo/A129 Duo IR/A129 Pro Duo/A129 Plus Duo Dash Camera.

The total length of the hardwire kit: 13.1 Feet/4M

2PCS Micro 2 Fuse
VIOFO 4PCS*2 Packs Circuit Fuse Tap with ATO, Mini, Micro2, Mini Low Profile Adapter Holder

VIOFO 4PCS*2 Packs Circuit Fuse Tap with ATO,

$15.99
More Details

VIOFO 4PCS*2 Packs Circuit Fuse Tap with ATO, Mini, Micro2, Mini Low Profile Adapter Holder

The VIOFO 4PCS x 2 Packs Circuit Fuse Tap Kit is a comprehensive fuse tap bundle for connecting VIOFO hardwire kits to your vehicle's fuse box. With 8 fuse taps total and adapters for all common fuse types, this kit is perfect for multi-vehicle installations, professional installers, or keeping spares on hand.

Key Features:

  • 8 circuit fuse taps total (4 pieces x 2 packs) — enough for multiple vehicles or installations
  • Complete fuse type adapter coverage: ATO, Mini, Micro2, Micro3, and Low-Profile Mini
  • Works with all VIOFO hardwire kits for permanent, clean power installations
  • Frees up the cigarette lighter socket for phone chargers or other accessories
  • Great value for professional installers or multi-car households

What's Included:

  • 2 packs of 4 circuit fuse taps each (8 total)
  • Fuse type adapters: ATO, Mini, Micro2, Micro3, Low-Profile Mini

Ideal For:

  • Professional dash cam installers who serve multiple customers
  • Households with multiple vehicles needing hardwire installations
  • Anyone who wants to keep spare fuse taps for future use

Important: Different vehicles use different fuse types. Consult your vehicle owner's manual or a local automotive service shop to identify the correct fuse type for your car. Fuse taps are used together with a VIOFO hardwire kit (sold separately) — the fuse taps alone do not power the camera.

VIOFO 4PCS*2 Packs Circuit Fuse Tap with ATO, Mini, Micro2, Mini Low Profile Adapter Holder
VIOFO Upgraded Version BTR200 Wireless Bluetooth Remote Control

VIOFO Upgraded Version BTR200 Wireless Bluetoo

$19.99
More Details

VIOFO Upgraded Version BTR200 Wireless Bluetooth Remote Control

【Easy to Use】Just simply press on the remote, important videos can be saved and locked, which lets you drive more safely. You can stick it to a suitable location on your dashboard, and the small body would keep the original appearance inside your car.

【Simple Pairing】Power on the camera and press the video lock button on the remote control for 3 seconds to pair the camera. The LED indicator on the remote will turn blue if paired successfully. With Event Locking, MIC&Wi-Fi&HDR ON/Off Function.

【Free Battery Included】There is a free extra battery in the package, you can install it when the first battery runs out. Batteries are not able to be charged.

 

 

VIOFO Upgraded Version BTR200 Wireless Bluetooth Remote Control
VIOFO CPL-300 Filter For Rear Camera of A229/A229 Plus/A229 Pro/A139/A139 Pro/T130

VIOFO CPL-300 Filter For Rear Camera of A229/A

$12.99
More Details

VIOFO CPL-300 Filter For Rear Camera of A229/A229 Plus/A229 Pro/A139/A139 Pro/T130

  • The CPL Filter is compatible with the A229/A229 Plus/A229 Pro/A139/A139 Pro/T130 Rear Camera.
  • Protect the camera lens from fingerprints, scratches, and dirt destroying.
  • Reduce reflections and glare from glass, metals, or shiny surfaces that would damage image quality.
  • Make colors more saturated and videos more beautiful.
  • It can be used during the daytime and at night. 
VIOFO CPL-300 Filter For Rear Camera of A229/A229 Plus/A229 Pro/A139/A139 Pro/T130
Universal Professional Lavalier Microphone Omnidirectional Mic for Smartphone, PC, Laptop, Camera, DSLR, Audio Recorder

Universal Professional Lavalier Microphone Omn

$19.99
More Details

Universal Professional Lavalier Microphone Omnidirectional Mic for Smartphone, PC, Laptop, Camera, DSLR, Audio Recorder

The VIOFO Universal Professional Lavalier Microphone is an external omnidirectional microphone that significantly improves in-cabin audio recording quality on compatible VIOFO dash cams. Ideal for rideshare drivers, fleet operators, and anyone who needs clear voice capture inside the vehicle.

Key Features:

  • 3.5mm audio jack — simple plug-and-play connection, no software setup required
  • Omnidirectional pickup pattern captures voices from all directions inside the cabin
  • Clip-on design — easily mounts on the sun visor, headliner, or dashboard
  • Dramatically clearer voice recording compared to the camera's built-in microphone

Ideal For:

  • Uber, Lyft, and taxi drivers who want clear passenger audio for safety documentation
  • Fleet vehicles where in-cabin conversations need to be recorded
  • Anyone who wants higher-quality audio than the built-in dash cam microphone provides

Compatible With:

  • VIOFO dash cams equipped with a 3.5mm external microphone input (e.g., A139, A229 Duo)

Important: Please verify that your specific VIOFO dash cam model has a 3.5mm external microphone jack before purchasing. Not all models support external microphone input.

What's in the Box: 1x lavalier microphone with 3.5mm plug and mounting clip.

Universal Professional Lavalier Microphone Omnidirectional Mic for Smartphone, PC, Laptop, Camera, DSLR, Audio Recorder
A139/A139 PRO Screw Mounting Bracket for Tamper-proof Security Guard Installation

A139/A139 PRO Screw Mounting Bracket for Tampe

More Details

A139/A139 PRO Screw Mounting Bracket for Tamper-proof Security Guard Installation

Tamper-proof Security Guard Installation helps to prevent unauthorized unplugging of the power cable, rear& interior cables, as well as the memory card.

A139/A139 PRO Screw Mounting Bracket for Tamper-proof Security Guard Installation

Video

VIOFO A139 PRO | First 4K HDR Dashcam with Sony STARVIS 2

VIOFO A139 PRO | First 4K HDR Dashcam with Sony STARVIS 2

Next Gen Dashcam Sensor: Sony Starvis 2, ft. Viofo A139 Pro

Next Gen Dashcam Sensor: Sony Starvis 2, ft. Viofo A139 Pro

Frequently Asked Questions

Password Compatibility Interior Image Firmware Wifi Power_Cable Codec & Hdr
How to reset the password?
Please long-press both the emergency lock button and the WiFi button to reset the camera (with the card inserted).
Why I cannot choose 4K 60 fps?
Please turn off HDR, when it is on, only 30 fps can be used.
Can the A139's interior and rear cameras work with A139 Pro?
Yes, they use the same interior/rear cables and ports.
Why the interior image is black and white?
When the infrared lights are on, it will be black and white, you can turn off the infrared lights in the settings.
Why the firmware upgrade fail?
Please make sure you use the correct firmware, it uses different firmware from the A139.
What's the main difference between the A139 Pro and A139 front cameras?
A139 Pro is 4K and the A139 is 2K.
Why I cannot find the wifi name on my phone?
Please upgrade the firmware to try again, you can also try another phone.
Why the camera is hot?
When the camera is in use, it will get warm as the heatsink dissipates the heat to protect the internal components.
What is the length of the power cable that comes with the unit?
The standard power cable is 3.5 meters in length.
Is the H.265 codec supported in the latest firmware? Is HDR Auto (HDR Timer) supported in the latest firmware?
Yes, both H.265 codec and HDR Auto (HDR Timer) are supported in the latest firmware.
Can I access the camera when I am not in the car through the app?
It doesn't support remote live tracking.
Is it possible to record with the vehicle off in Parking Mode without the hardwire kit?
If you don't use the hardwire kits, you need to use another constant power supply like a power bank.
Is there an option to disable the voice prompts?
Yes, you can disable this feature in the camera settings.
How long is a video capture? And are there different options for video capture lengths?
The default length is 1 minute, there is a loop recording option to change the length.

Reviews

4K Ultra HD Recording

Being the first to deploy the newest Sony STARVIS 2 tech, A139 Pro is powerful enough to outbeat most 4K dashcam competitors with immensely upgraded image clarity and accuracy in license capturing.

4K Ultra HD Recording

Sony STARVIS 2 IMX678

Sony latest technology STARVIS 2 IMX 678 image sensor, type 1/1.8’’, offers a wider dynamic range in a single exposure than the STARVIS pixel of the same size, bringing much less noise and motion blur during day & night recording.

Sony STARVIS 2 IMX678

4K HDR | Night Vision 2.0

Night vision has always been a headache with all dashcams, but is highly optimized in A139 Pro. Image sensor type 1/1.8’’ with larger pixel brings in more light under same illumination level and 4K HDR tech balances over dark and over bright areas to help accurately restore 4K details recorded at night.

4K HDR | Night Vision 2.0

Infrared Cabin Night Vision

Built with F1.6 aperture, 7 elements glass lens, the interior camera features six infrared LED lights, allowing the camera to record in details even in complete darkness.

Infrared Cabin Night Vision

User-friendly Installation

Built with super slim coaxial cable and miniature connectors, A139 PRO enables more user-friendly, hidden installation and better electromagnetic interference reduction.

User-friendly Installation

4X Faster 5GHz Wi-Fi

An upgraded 5GHz Wi-Fi connection module is built into A139 Pro to provide 4 times faster Wi-Fi data transfer, ensuring smooth video previewing, downloading and sharing.

4X Faster 5GHz Wi-Fi

Voice Notification

A139 Pro supports multiple languages and clearly notifies you of settings changes or memory card errors, keeping you fully focused on the road.

Voice Notification

GPS Logger

A139 Pro provides detailed location, speed and time data of the vehicle when playing back the video on VIOFO App or computer.

*If you use the VIOFO App to play back the video and view GPS map, please download the video first.

GPS Logger

CPL Filter

A circular polarizing lens (CPL) filter can be used to reduce reflections and glare off glass and road surfaces, bringing significantly improved image clarity and contrast.

CPL Filter

Optional Accessories

Optional Accessories

External Microphone

The A139 series supports the use of external microphones, which are ideal for recording conversations, traffic accidents and potentially police misconduct.

Optional Accessories

Bluetooth Remote Control

The Bluetooth Control can be positioned in a convenient location for safe and easy use while driving. Pressing the button will instantly protect current video clip and image. Control Distance: 5 meters.