【CHEAP】 More expensive than real surveillance cameras, but an effective way to deter criminals, thieves and imposters when you are not at home. 【SAME APPEARANCE】 Like a good quality dummy, it is a dome and there is a digital imitation camera, with red LED light. It seems that everything is in control. 【EASY USE】 Affix 3 AA batteries, then install on the ceiling or wall using the included screws, it can last 2 to 3 months or 3 to 6 months depending on your chosen battery. Don't need to take frequently. 【WATERPROOF】 Because it is characterized by waterproof, it can be moved outside like the social service of a neighborhood or workshop road etc. 【4 PCS】 Four camera is enough to arm your family or store all-round, it is the wireless product, install at any place as you want.