Real vision angle: 170.0 degrees Front and cabin recording 4K + 1080P: the D1 Pro 4K version is the enhanced version of D1 Pro 2K, supports 4K 2160P front recording and 1080P cabin recording simultaneously. Compact occult design and super wide viewing angle double lens of 170°, gives you the maximum coverage of the road and provides sharp and clear images and videos Intelligent application control and GPS speed recording: easy to connect the control camera with the phone app via integrated WiFi. You can play/download videos and adjust the settings directly through the phone app (functions with Android and iOS devices). built-in GPS, recording your route and driving speed in videos. GPS module connected to the control chambers, no need to wire the GPS cable separately. Recommand download the GXPlayer on our official website to play GPS Best Night Vision DASHCAM - Adopt the industry-leading STARVIS sensor and Hisilicon processor for a better image effect. With f/1.8 opening and WDR technology, you can record stunning details even in low-light environments Reliable features for emergency recording: integrated G sensor, which will activate emergency recording and block videos when the car detects a collision during driving and parking. Parking monitoring, the control camera will automatically activate video recording and protect emergency files once a collision or scratch is detected during the parking lot. Loop recording, automatically rewrite older videos with new ones, even when the SD card is full, the board camera will continue to record.