There is a chirp at the beginning of every video clip. I saw one user thought it was a bird and it was blamed that a bird chirping was triggering the recording, but this is not the case. There is the same audible chirp at the beginning of every clip. Also the 3 hours is useless. If anyone reading this is considering this device based on 3 free rolling hours, consider the guy that came to my door at 1 am. When I woke up I was not able to get any video of the event.
