IMPROVE SECURITY -- Reducing the possibility of crime, and much cheaper. Have everyone believe you are keeping an eye on employees, property, and your business. LIGHT SENSOR -- Dummy camera has a built-in photoelectric sensor, red LED light only lights up at night, more durable than traditional fake cameras. They will 7x24 protect your safety. PROTECTS YOUR SAFETY -- With a similar appearance to real cameras, people will think it's a real camera, even in the close distance during the day; The red LED light flashing 7/24 after the battery is installed. It's very eye-catching at night, making it more like real cameras. TIPS -- The dome design of this fake surveillance camera makes it perfect. Install both fake and real cameras to protect your home and business at such little cost. No wires needed, with attached screws, installs easily and quickly to ceiling/wall/surface. 2 pcs AA batteries operated (NOT included). Colour: black Material: plastic Size: 11.5 x 11.5 x 7.5mm Package Contents: 4 x Dummy Security Camera Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.