Wireless Doorbell, Emos, 120 m max, 16 melody, 85 dB, 1× 3 V CR2032 / 230 V DC, 433 MHz, USB 2 A, repeater function

Wireless Doorbell set includes receiver and transmitter • frequency 433 MHz • operating range up to 120 m in open area (depending on the conditions) • 16 melodies • sound is signalled optically on the receiver and transmitter • adjustable volume • power supply: receiver: 230V~/50Hz, transmitter: battery 1× 3 V CR2032.