A139 2CH Dual Channel Dash Cam Front 2K 1440P + Rear 1080P 5GHz Wi-Fi GPS Dash Camera
Overview Spec Compare Accessories Video FAQ Review
VIOFO A139 2CH dual dash cam front and rear cameras with 2K and 1080P recording
A139 2CH Dual Channel Dash Cam Front 2K 1440P + Rear 1080P 5GHz Wi - Fi GPS Dash Camera - Viofo - official
A139 2CH Dual Channel Dash Cam Front 2K 1440P + Rear 1080P 5GHz Wi - Fi GPS Dash Camera - Viofo - official
A139 2CH Dual Channel Dash Cam Front 2K 1440P + Rear 1080P 5GHz Wi - Fi GPS Dash Camera - Viofo - official
A139 2CH Dual Channel Dash Cam Front 2K 1440P + Rear 1080P 5GHz Wi - Fi GPS Dash Camera - Viofo - official
A139 2CH Dual Channel Dash Cam Front 2K 1440P + Rear 1080P 5GHz Wi - Fi GPS Dash Camera - Viofo - official
A139 2CH Dual Channel Dash Cam Front 2K 1440P + Rear 1080P 5GHz Wi - Fi GPS Dash Camera - Viofo - official
A139 2CH Dual Channel Dash Cam Front 2K 1440P + Rear 1080P 5GHz Wi - Fi GPS Dash Camera - Viofo - official
A139 2CH Dual Channel Dash Cam Front 2K 1440P + Rear 1080P 5GHz Wi - Fi GPS Dash Camera - Viofo - official
A139 2CH Dual Channel Dash Cam Front 2K 1440P + Rear 1080P 5GHz Wi - Fi GPS Dash Camera - Viofo - official
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A139 2CH Dual Channel Dash Cam Front 2K 1440P + Rear 1080P 5GHz Wi-Fi GPS Dash Camera

$199.99 $219.99
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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
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
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
More Accessories
Subtotal
$199.99 $219.99

Product Information

  • Channels2-Channel
  • ChipsetNovatek
  • SensorFront: Sony IMX335 5MP / Rear: Sony STARVIS 2MP IMX291
  • Video Resolution2K 60fps + 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 (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
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
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

Video

VIOFO A139 3CH 3 Channel Front 1440P + Interior 1080P + Rear 1080P WiFi Dash Cam

VIOFO A139 3CH 3 Channel Front 1440P + Interior 1080P + Rear 1080P WiFi Dash Cam

Frequently Asked Questions

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 does the camera beep?
It means the camera stops recording, and the REC light will flash.
Why is the interior/rear camera not detected?
Please try the rear/interior port and check if there is any damage to the cables.
Is the lighter entry the same as in the package list? Dual USB input?
Yes, it includes the dual USB port charger adapter.
Can I buy a 2ch and upgrade to 3ch when needed?
Yes, you can buy a 2-channel version and upgrade to 3 channels in the future.

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