This is the camera system that mounts to a bicycle for providing a clear view of the road behind. The camera mounts to a bicycle's seat post, provides a rear-facing 75º field of view ideal for seeing approaching vehicles or other cyclists.
A circular pattern of red LEDs flash when the camera's built-in sensor detects low-light conditions for visibility to traffic. The camera system's rechargeable battery provides up to 10 hours of operation from a two-hour charge using the included AC adapter.
(thanks Cora)