This indoor musical door-chime has a choice of 8 different melodies to pleasantly announce the arrival of visitors. Wireless up to 50 feet from the transmitter. Suitable for home or office. Special high-powered circuitry provides a high quality tone signal. Consumes very little power and the 3 AA alkaline batteries (not supplied) may last as long as 1 year. Requires 1 12volt 2/3AA battery (included) for the remote control transmitter. 10,000 different codes allow many systems to be used within close proximity. Imported for ongoing availability. Colorful, display-ready blister packaging for quick retail sales. SA179