Technical Specifications Dimensions 5” x 5” x 1.4” /126 x 126 x 36mm Weight 6.8oz/194g Transmission 200ft/60m wireless* Batteries 3 x AA batteries for Receiver (not included) DOORBELL Dimensions 3.5 x 1.5 x 0.9” / 90 x 38 x 23mm Weight 1.5oz/42g Batteries 1 x CR2032 Battery for Doorbell (included)