32-Melody Wireless Doorbell Transmitter / Receiver Set - White (1 x 23A 12V / 2 x AAA)
Model: 9570 - Color: White - ABS material housing - Transmitter power: - Working frequency: 315 +/- 2MHz - Detection range: Up to 150 meters in open air - Built-in 32 melody chimes - Adjustable volume (25~75dB) - Transmitter was powered by 1 x 23A 12V battery (included) - Receiver was powered by 2 x AAA batteries (not included)