Wireless Doorbell, 100 M, Clamp Mount

1 doorbell, 1 button Open field range: approx. 100 m Polyphonic, pleasant sound 8 varied, well-known melodies Suitable also for personal alarm Unique coding with learning function Strong protection against interference with other doorbells Blue light signal synchronized with the sound signal Button with IP44 protection 256 digital codes available Operating frequency: 433.9 MHz Doorbell power supply: 2 x 1.5V AA batteries / not included Button power supply: 1 x 3V CR2032 battery, included