Easy to install, no extra wiring required. Just fix the screw hole position on the wall of the installation first, then drill 2 eyes at the fixed screw hole position with the impact drill, and insert the expansion screw to install the fixed hemisphere type simulation monitor!. This simulation camera needs to use three AA batteries (the battery is not included, buyers need to purchase sepa ely). After the battery is installed, the fake monitor will always flash, the flashing interval is 1 second, and the good quality battery can maintain 3 to 6 month.. When used in conjunction with a real monitor, it is effective and can greatly reduce the cost of security! Because our simulation monitors are realistic and workmanship, the working mode is exactly the same as the real monitor. It is difficult for others to identify the simulation products!. Install one or several simulation monitors in a supermarket, hotel, parking lot, library, office, warehouse, residential area, or some conspicuous location at a certain intersection. It can be very effective in quenching and deterring thieves or The lawless elements make them afraid to get close!. This dome camera is a fake monitor that mimics the shape, pattern and workings of a real monitor. This camera is made of plastic, , and durable..