Note: Only recorder with a display screen have the function of "short press remote control to switch to rear camera",no screen recorder do not have this function.Please ignore the function mentioned in the manual. ?Stable Motorcycle Dash Cam System?2 channel separated cameras with each standard 2.0 meters extension cable for front and rear view recording. Hard-wired connections provide stable signal transmission. Good stability and friendly operation will let you enjoy the ride. If the extension cord is not long enough, please contact us. ?Seamless Loop recording & G-Sensor?: Users can choose to record video at 1/2/3/5 minutes. When the SD card is full, the new video will overwrite the oldest recorded video. When the built-in G-sensor detects that the motorcycle is collided, the recorder record emergency lock video. Special designed for motorcycle. Recording road situation and accident proof, protecting riders’ safe. ?Full Body Waterproof?: Waterproof host and cameras. Whether it's rainy or dusty, it works steadily, recording every moment of your journey. On rainy days, the excellent water resistance of the dash cameras will increase your cycling comfort and make your riding more convenient. ?Multifunctional Wired Remote Control?: After you insert the memory card and connect the cameras, if the remote control appears abnormal vibration, indicating that the recorder may be faulty. You can stop the motor vibration by long pressing the blue button. Short press the red button to record the emergency video, and the front and rear cameras will capture a picture; long press it to reset the WiFi name and password. The LED indicator can indicate the working status of the recorder. ?HD 1080P Cameras and GPS Tracker?: With SONYIMX307 COMS sensor, front and rear both 1080P resolution. Advanced "WDR" technology can automatically capture more lights, adjust the brightness to take clear, color-accurate video even in low-light environments.You will get beautiful robust clearer image. Users can know the driving route, longitude and latitude of the recorded video through GPS. The driving track can be viewed on the map on the APP and computer. ?WiFi Signal Enhancer?: Equipped with WiFi signal enhancer, the speed of downloading video files is greatly improved. By connecting to the WiFi of the recorder, you can view the video on the mobile APP, no phone data required and don't need pull out memory card, you can view real-time video, download, edit, and share the video to your phone. The APP supports both iOS & Android systems.