PowerPac PP3238 Ding Dong Door Chime

Strong anti-interference Low power consumption The idea for home, office, factories, guest rooms in the hotel, etc. Installation Open the battery compartment cover of the receiver and load 1 x 9V ALKALINE batteries (Not included) Fix the transmitter on the wall near the door with screws or adhesive tapes. Avoid placing the transmitter near the high-temperature moist area, metal or electromagnetic surfaces Please replace the battery if the transmitter is not functioning properly Package Dimensions11.5x5x11.5cm"