Theft deterrence is affordable with this set of Mock Surveillance Security Cameras. Potential intruders will think twice when they see the red lights on these motion-activated devices. The stationary fake cameras resemble real home security cameras with a flash of red light. With this set of 4, neighbors and visitors will think you have a complete home surveillance system. Each mock camera installs in minutes with no wiring required; 2 wall screws included. Each requires 2 AA batteries (not included). 4 1/2"L x 3"W.