Wireless 100 MT Distance Doorbell

100 Meters Distance to Your Home and Decoration; It is easily assembled and disassembled without causing damage. There is no need for electrical installation. Energy Consumption is Very Low. The receiver is used with a 12 Volt 2.3 A Battery (included). Transmitter 3 pcs. Works with 1.5 Volt AA Batteries (Not Included). You can use double-sided adhesive tape when fixing the main part on the edge of the door or window.