This is a terrible device. Bought to test it for several possible uses and it doesn't work for everything I was hoping for. At first I was hoping I could set it up as a 'live' camera to deliver a video signal to a TV. However, the camera cannot output live video via HDMI, it can only play back the previously recorded video. Second, I was hoping to use it as a low-cost DVR, a feature it claims to support. The battery lasted for several rides around town (about 45 minutes), although I turned it off at each stop. Additionally, videos are saved in chunks of just a few minutes, making it very difficult for me to go back and watch the video. Unfortunately I forgot the time and didn't request a refund sooner. My return deadline has expired so I guess I don't have $40