1) Power on: Press and hold ON/OFF button for 2 seconds, the machine power on directly into the camera standby. 2) Shutdown: Press and hold ON/OFF button for 3 seconds, the machine directly power off (the video file would be saved automatically before shut down). 3) Low Battery: If detected low battery voltage during using, low battery symbol on left screen flash, reminding the user to charge. 4) Charge: Connect the charger, screen display charging action, after the battery is fully filled with cells (yellow light is on/off while charging or charging fully) 5) PC Camera: First installed PC camera driver in the computer, connect the device to the computer, popup the removable disk symbols, press the ON/OFF button, the machine automatically convert web camera. * Specification: 1) Camera Resolution: 1280*980 2) Photo Resolution: 1280*980 3) Frame Rate: 30 4) Support TF Card (1-16G) 5) Power: with built in rechargeable lithium battery; external connected 12/24V Car charger 6) Support Loop Recording OEM are Welcome! we can print customer's artwork and logo