1. Introduction
Thank you for choosing the 70mai Dash Cam 4K A810. This advanced dual-channel dash camera is designed to provide high-quality video recording for your vehicle, enhancing driving safety and providing evidence in case of incidents. It features 4K UHD resolution, a Sony STARVIS 2 IMX678 sensor for exceptional low-light performance, front and rear HDR recording, 24-hour parking surveillance, Advanced Driver-Assistance Systems (ADAS), built-in GPS, G-sensor emergency recording, and convenient app control. Please read this manual thoroughly before use to ensure proper installation and operation.

Image: The 70mai Dash Cam 4K A810 main unit with its compact design, accompanied by the rear camera.
2. Package Contents
Verify that all items are present in your package:
- 70mai Dash Cam A810 (Main Unit)
- Rear Camera (RC12)
- USB Car Charger
- Electrostatic Sticker
- Adhesive Sticker
- Mounting Bracket
- Wiring Crowbar
- User Manual
- Power Cord
- Rear Camera Signal Cable (6 meters)
- microSD Card (64GB)

Image: Visual representation of the Dash Cam A810, rear camera, car charger, cables, and accessories included in the box.
3. Setup
3.1 Choosing an Installation Location
Select a location on your windshield that does not obstruct your view and is away from potential interference sources like other electronic devices in the car. Ensure the camera has a clear view of the road ahead. For the rear camera, choose a spot on the rear window that provides a wide, unobstructed view.
3.2 Installing the Main Unit
- Clean the chosen area on your windshield thoroughly.
- Attach the electrostatic sticker to the windshield, then firmly press the adhesive sticker of the mount onto the electrostatic sticker.
- Slide the main dash cam unit onto the mounting bracket until it clicks into place.
- Adjust the camera angle to ensure the road is centered in the frame.
3.3 Installing the Rear Camera
Mount the rear camera on your rear window using its adhesive. Connect the rear camera to the main unit using the provided 6-meter signal cable. Route the cable neatly along the vehicle's interior trim using the wiring crowbar.
3.4 Power Connection
Connect the main unit to your vehicle's cigarette lighter socket using the provided USB car charger and power cord. Ensure you use the official power accessories to prevent compatibility issues. The dash cam will power on automatically when the vehicle starts.
3.5 Inserting the microSD Card
Insert the provided 64GB microSD card into the designated slot on the dash cam. Ensure the card is inserted correctly. The device supports up to 256GB microSD cards (U3 class recommended).
4. Operating Instructions
4.1 Basic Recording
Once powered on, the dash cam automatically begins recording. The front camera records in 4K UHD, while the rear camera records in Full HD. Both cameras support HDR for balanced exposure in varying light conditions.

Image: A comparison showing the clarity of 4K UHD recording, capturing details like license plates.

Image: An overhead view of a car showing the wide-angle coverage of the front (150ยฐ) and rear (130ยฐ) cameras with HDR enabled.
4.2 Super Night Vision with STARVIS 2
The dash cam utilizes the Sony STARVIS 2 IMX678 sensor and an F1.8 aperture lens to significantly improve imaging performance in low-light conditions. This ensures clear recordings at night or in tunnels, capturing details like license plate numbers.

Image: Side-by-side comparison demonstrating enhanced clarity and detail in night recordings using the STARVIS 2 sensor.
4.3 24-Hour Parking Surveillance
To enable 24-hour parking surveillance, the optional 70mai Hardwire Kit+ UP03 (sold separately) is required. When connected, the dash cam will monitor your vehicle even when parked. It features AI motion detection to automatically record suspicious activity around your car, such as hit-and-runs or unauthorized access.
Note: The specific operating time depends on your vehicle's battery condition. The default protection voltage for the parking surveillance cable is 11.8V. If the battery voltage drops below this, the power supply will stop, and the recorder will shut down. Consider a parking surveillance auxiliary battery if battery drain is a concern.

Image: A car parked in a garage, illustrating the 24-hour parking surveillance feature.

Image: AI motion detection highlighting individuals near a parked vehicle, indicating suspicious activity.
4.4 ADAS (Advanced Driver-Assistance Systems)
The A810 is equipped with ADAS features to enhance driving safety. It detects dangerous situations involving vehicles, pedestrians, and bicycles, providing timely visual and audible alerts to the driver. ADAS functions include:
- Lane Departure Warning
- Forward Collision Warning
- Front Vehicle Start Alert
- Pedestrian Alert
- Bicycle Rider Alert
All ADAS functions can be toggled ON/OFF via the 70mai app.

Image: Visual representation of ADAS alerts for lane departure, front collision, and pedestrian detection.
4.5 Built-in GPS
The integrated GPS module records important information such as date, time, and location of incidents. This data can be reviewed post-event via the 70mai app, providing crucial context for any recorded footage.

Image: A car driving on a road with GPS data overlay, showing location, speed, and time.
4.6 G-Sensor Emergency Recording
The built-in G-sensor automatically detects sudden impacts or collisions. In such events, it triggers emergency recording, saving footage from a few seconds before and after the incident to a separate, protected folder to prevent overwriting.

Image: A scene depicting a minor car accident, with the dash cam shown in the foreground, indicating G-sensor activation.
4.7 Loop Recording & Time-Lapse Recording
The loop recording function automatically overwrites the oldest footage when the microSD card is full, ensuring continuous recording. In parking mode, time-lapse recording compresses 15 minutes of footage into 1 minute, saving memory space and reducing battery consumption.

Image: A sequence of images demonstrating time-lapse recording, showing a car being parked over a period of time.
4.8 App Control
Download the dedicated 70mai app to your smartphone. Connect to the dash cam via Wi-Fi to view live footage, play back recorded videos, download files to your phone, and adjust various settings. Regular app updates ensure access to the latest features and improved stability.

Image: A smartphone displaying the 70mai app interface, showing live dash cam footage and control options.
5. Maintenance
5.1 Cleaning the Lens and Screen
Regularly clean the camera lenses and screen with a soft, dry cloth to ensure clear image quality. Avoid using abrasive cleaners or solvents.
5.2 microSD Card Management
It is recommended to format the microSD card periodically (e.g., once a month) using the dash cam's settings to maintain optimal performance and prevent data corruption. Back up any important footage before formatting.
5.3 Firmware Updates
Check for firmware updates via the 70mai app. Keeping your dash cam's firmware up-to-date ensures access to new features, performance improvements, and bug fixes.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Dash cam does not power on. | Loose power connection; faulty car charger/cable; vehicle power outlet issue. | Check all power connections. Ensure the car charger is properly inserted. Test the car charger with another device or try a different power outlet. Use only official 70mai power accessories. |
| Poor video quality / blurry images. | Dirty lens/windshield; protective film still on lens; incorrect camera angle. | Clean the camera lens and windshield. Remove any protective film. Adjust the camera angle for a clear view. |
| MicroSD card error / recording issues. | Faulty or incompatible microSD card; card needs formatting. | Ensure you are using a U3 class microSD card. Format the microSD card via the dash cam settings or replace it with a new, compatible card. |
| App connection issues. | Wi-Fi not enabled on dash cam; incorrect Wi-Fi password; app outdated. | Ensure Wi-Fi is enabled on the dash cam. Re-enter the Wi-Fi password. Update the 70mai app to the latest version. |
| Parking surveillance not working. | Hardwire kit not installed; low car battery voltage. | Ensure the 70mai Hardwire Kit+ UP03 is correctly installed. Check your vehicle's battery voltage. |
7. Specifications
- Brand: 70mai
- Model Name: A810
- Video Capture Resolution: 2160p (4K UHD)
- Image Sensor: Sony STARVIS 2 IMX678
- Aperture: F1.8
- Field of View: Front 150ยฐ, Rear 130ยฐ
- Special Features: HDR (Front & Rear), Super Night Vision, 24-Hour Parking Surveillance (with optional hardwire kit), ADAS, GPS, G-Sensor, Loop Recording, Time-Lapse Recording, App Control
- Mounting Type: Adhesive Mount
- Control Method: App
- Product Dimensions (D x W x H): 80 x 36 x 60 mm
- Screen Size: 3 inches (LCD)
- Battery Type: Lithium-ion
- Compatible Vehicle Types: Car (12V passenger cars and 24V trucks)
- Included Components: User Manual, microSD Card (64GB)
- Origin: China
8. Warranty and Support
8.1 Manufacturer's Warranty
This product comes with a 3-year manufacturer's warranty from the date of purchase. This warranty covers defects in materials and workmanship under normal use. Please retain your proof of purchase for warranty claims.
8.2 Customer Support
For any questions, concerns, or technical assistance, please contact the 70mai-JP official service team. Our support team is available to help you with installation, operation, troubleshooting, and warranty inquiries.
Contact information can typically be found on the official 70mai website or through your purchase platform.





