2.7 Inch HD 1080P Dash Cam, 170 Wide Angle

A: there are 3ways 1.it will start to record automatically when your car start and no need to do anything manually.(before that be sure the if card is inside it and car charger is connected well.) 2.if inside battery is not empty,you just need to press the power button. 3.connect it with usb cable by a charger plug or power bank(5v 1a with usb port) a: the sd cards are generally placed into the cameras cables "up"or "out".push them in until the click sound is heard (you will feel a little spring inside the camera providing tension), sometimes you may need a nickel or another object to push in far enough. don't worry it is designed this way 50 that the sd card doesn't come out while you are driving down the loop or looping is the important feature that. allows the car dvr to continuously record video (hour after hour) to thesame memory card. as the camera records in the "loop" or "cycle" setting, it is creating video files or segments in 2, 5 or 10 minute lengths.