This Lighter Hidden Camera with built-in DVR is one of the most mobile surveillance devices we offer and it really functions as a lighter! It is completely covert, there are no tell tale signs that the camera is on or recording. The 4GB of internal memory can store up to 8 hours of recording. The battery will last up to 2 hours on a single charge. Once you’re done recording, simply connect it to a computer via USB and downloard/view the video. Also records audio.