1. Introduction
Thank you for choosing the 70mai Dash Cam 4K T800E + CPL. This manual provides detailed instructions for the installation, operation, and maintenance of your dash cam. Please read this manual thoroughly before use to ensure proper functionality and safety.
2. What's in the Box

Image: Contents of the 70mai Dash Cam 4K T800E package, including the main dash cam unit, rear camera, cables, and accessories.
- 70mai Dash Cam 4K T800E (Front Camera)
- RC21 Rear Camera
- 64GB SD Card
- USB Car Charger
- Electrostatic Sticker (x2)
- Power Cord
- Rear Camera Cable
- Heat-Resistant Adhesive & Mount
- Wiring Trim Tool
- User Manual (Front Cam)
- User Manual (Rear Cam)
3. Setup & Installation
3.1 Front Camera Installation
Video: Official 70mai installation guide for the Dash Cam 4K T800E front unit.
Follow these steps to install the front dash cam:
- Clean the windshield area where the dash cam will be mounted.
- Apply the electrostatic sticker to the cleaned area.
- Attach the heat-resistant adhesive mount to the dash cam.
- Stick the dash cam onto the electrostatic sticker.
- Connect the power cord to the dash cam and route it along the windshield edge and dashboard to the car charger. Use the wiring trim tool to tuck the cable neatly.
- Plug the car charger into the vehicle's cigarette lighter socket.

Image: Diagram illustrating the easy installation process of the 70mai Dash Cam 4K T800E, showing cable routing.
3.2 Rear Camera Installation
Video: Official 70mai installation guide for the RC21 Rear Camera.
To install the rear camera (RC21):
- Clean the rear windshield area where the rear camera will be mounted.
- Apply an electrostatic sticker to the cleaned area.
- Attach the rear camera to the electrostatic sticker.
- Connect the rear camera cable to the rear camera and route it along the headliner and A-pillar to the front dash cam.
- Connect the rear camera cable to the designated port on the front dash cam.
3.3 Hardwire Kit (Optional for Parking Monitor)
For continuous 24/7 parking monitoring, a hardwire kit (UP06 or UP03, sold separately) is required. This connects the dash cam directly to your car's fuse box, providing constant power. Refer to the hardwire kit's specific manual for detailed installation instructions or consult a professional.
4. Operating Instructions
4.1 Basic Operation
- Power On/Off: The dash cam automatically powers on and starts recording when your vehicle starts. It powers off when the vehicle is turned off.
- Screen Control: The dash cam features a 3-inch IPS LCD screen. You can configure the screen to turn off automatically after a set period (e.g., 30 seconds, 1 minute) or remain 'Always On' via the device settings.
- Navigation: Use the physical buttons below the screen to navigate through menus and settings.
4.2 Voice Control

Image: Visual guide to voice commands for the 70mai Dash Cam 4K T800E.
The 70mai Dash Cam supports hands-free voice control for safer driving. Common commands include:
-
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