Lowpricenice Car Alarm Remote Keychain DVR Camera SPY CAMERA The Shutter button is the small button all the way to the front. The Power button is the larger button, right behind the shutter button. A new, fully charged battery will last about 45 minutes in the keychain model. The camera requires a standard USB cable for charging, connecting to external battery packs for continuous recording and for connecting to the PC as an external disk or webcam. Please read the instructions manual before using the product.