uxcell Household Plastic Wireless Musical Remote Doorbell Door Chime + Switch Product Name : Wireless Doorbell w Switch;Doorbell Size : 9.5x 6x 3cm/ 3.7" x 2.4" x 1.2"(L*W*H) Button Size : 7x 4x 1.5cm/ 2.8" x 1.6" x 0.6&#39;&#39; (L*W*H);Button Power : 1 x 12V 23ABattery (Here is not Included) Doorbell Power : 2 x AA 1.5V Battery (Not Included);Material : Plastic Main Color : White, Blue;Net Weight : 85g Package Content : 1 x Wireless Doorbell1 x Switch