Introduction
The 70mai Dash Cam M310 Pro 3K is an advanced car DVR designed to provide high-quality video recording for your vehicle. Featuring 3K (1620P) resolution, a 139° wide field of view, excellent night vision, and smart WDR technology, it ensures clear and detailed footage in various lighting conditions. With smart voice control and 24-hour parking guard support, the M310 Pro 3K offers enhanced security and convenience for your driving experience.

Setup
Package Contents
Before installation, please verify all items are present:
- M310 Pro intelligent driving recorder
- Pry bar (x1)
- High temperature resistant adhesive (x2, one pre-installed on bracket)
- Electrostatic sticker (x2)
- Type-C power cord (x1)
- Packaging box (x1)

Installation Method
Follow these steps for proper installation and wiring:
- A. Recorder Host Installation: Install the recorder host in the suggested area (typically behind the rearview mirror). Hide the connecting wire along the front windshield into the roof gap and connect it to the fuse box through the A-pillar.
- B. Parking Monitoring Power Supply (Optional): To enable 24-hour parking monitoring, use a 70mai parking monitoring cable (sold separately). Connect this cable to the fuse box. This cable also provides low voltage protection (11.8V) to prevent battery depletion. The parking monitoring line needs to be connected to a safety box; consult professionals for specific vehicle models.
- C. Cigarette Lighter Power Supply: For standard power, hide the Type-C power cord along the passenger side and connect it to the central control cigarette lighter. Using a cigarette lighter for power does not alter the original vehicle's circuit or damage the interior design.

App Connection
The 70mai Dash Cam M310 Pro 3K supports Wi-Fi interconnection for high-speed data transmission. Download the official 70mai app on your smartphone. Connect to the dash cam's Wi-Fi hotspot to enable real-time viewing, video playback, downloading of videos, and access to timeline albums for event records and analysis.

Operating Instructions
Basic Recording
The dash cam automatically begins continuous loop recording when powered on. Older footage will be overwritten by new recordings once the memory card is full, ensuring continuous operation.
Voice Control
The M310 Pro 3K features smart voice control for hands-free operation. Use the following keywords:
- "I want to take a photo"
- "I want to record a video"
- "Turn on/off recording"
- "Turn on/off hotspot"

Parking Guard (Requires Hardwire Kit)
With the optional parking monitoring cable, the dash cam provides 24-hour parking security. It includes:
- Collision Detection: Continuously monitors and automatically records videos of abnormal vehicle collisions.
- Time-lapse Photography: Records at 1 frame per second, providing uninterrupted, high-energy compression for long-lasting space saving.


Emergency Video
In the event of an emergency, such as a collision, the dash cam automatically saves and locks video footage. This includes up to 10 seconds before the collision and 30 seconds after, ensuring critical evidence is securely collected and not overwritten.

360° Rotation
The dash cam supports 360° rotation, allowing for flexible installation and recording both in front of the car and inside the cabin. Video flipping and mirroring can be set in the app if needed. For internal recording, activate the 'Internal recording' icon in the app.

Maintenance
Storage Management
The 70mai M310 Pro 3K supports external TF (microSD) cards from 16GB up to 256GB. It is recommended to use a high-quality, endurance-rated memory card for reliable performance. Regularly format your memory card to prevent data corruption and ensure optimal recording.
Approximate recording times for the M310 Pro 3K:
- 64GB: About 301 minutes (approx. 98 emergency videos)
- 128GB: About 603 minutes (approx. 196 emergency videos)
- 256GB: About 1315 minutes (approx. 439 emergency videos)
Note: These figures are based on laboratory data and actual storage time may vary depending on video quality settings, emergency video frequency, and other factors.

Troubleshooting
- Dash Cam not powering on: Check the power connection to the cigarette lighter or fuse box. Ensure the vehicle's ignition is on.
- Recording issues: Ensure a compatible TF card is inserted correctly and has sufficient free space. Format the card regularly.
- Wi-Fi connection problems: Restart the dash cam and your smartphone. Ensure you are connecting to the correct 70mai Wi-Fi hotspot.
- Voice control not responding: Speak clearly and ensure the car interior is not excessively noisy.
- Parking monitoring not working: Verify that the optional parking monitoring cable is correctly installed and connected to the fuse box, and that the feature is enabled in the app.
Specifications
| Feature | Specification |
|---|---|
| Model | M310 Pro 3K |
| Image Resolution | 2880*1620 (3K), 1620P |
| Photo Pixel | 500W |
| Frame Rate | 30fps |
| Aperture | F1.55 |
| Field of View (FOV) | 139° |
| Storage Method | External TF card (16GB-256GB) |
| WDR/HDR | WDR |
| 360° Rotation | Supported |
| Loop Record | Supported |
| Voice Control | Supported |
| Emergency Video | Supported |
| APP Interconnection | Supported |
| Working Temperature | -20℃ ~ 60℃ |
| Cable Length | 3.5M (Type-C) |
| Dimensions (W x H x D) | 100.3 x 52.5 x 36.1mm |
| Input/Output | Type-C |
| Power Source | Corded Electric |
| Built-in Screen | No |

User Tips
- Use a High-Quality SD Card: For optimal performance and longevity, invest in a reputable brand's endurance-rated microSD card. This is crucial for continuous loop recording.
- Regularly Format SD Card: To prevent data corruption and ensure smooth operation, format your microSD card within the dash cam settings at least once a month.
- Optimal Placement: Mount the dash cam in a location that doesn't obstruct your view but still captures a clear, wide angle of the road ahead.
- Keep Firmware Updated: Check the 70mai app periodically for firmware updates to ensure you have the latest features and bug fixes.
Warranty and Support
For warranty information, technical support, or service inquiries, please refer to the official 70mai website or contact their customer service directly. Keep your purchase receipt as proof of purchase for warranty claims.





