In the event of a collision or sudden driving accident, you can connect to the mobile APP to view it in real time without consuming mobile phone data HDR high dynamic, when encountering strong light, it will automatically suppress the light source to prevent the video from being overexposed. In low light,it will automatically fill in light to enhance the picture quality 170° angle, easily cover 3 lanes on the left and right. Reduce visual blind spots and completely restore the accident scene to determine responsibility and save time and effort F18 large aperture. The smaller the aperture F value is,the larger the aperture is and the more light is admitted,the picture is brighter and reaches starlight level imaging The small body can be held in one hand, and the bracket and interface are integrated without blocking the view, making the wiring more beautiful Built-in gravity sensor, when braking and collision are detected, emergency records are automatically locked in a separate partition and will not be covered by daily videos Specification: Solution: Mastar8629Q? Type: WIFI+no screen+APP Lens: 4653+2053, double recording Maximum support: 128G memory card (not included) Video pixels: 2K+1K, supports low-light night vision and no-light night vision Language: Simplified Chinese, Traditional Chinese, English, German, Japanese, Portuguese, French, Korean, Italian, Russian Note: This product does not come with a TF card (the body has no built-in memory, and a TF card needs to be inserted to take photos and videos).