Product Category: Wireless Doorbells
Voltage of Receiver: AC 80V-280V
Battery in Transmitter: 12V 23A Alkaline Battery
Power Consumption (Transmitter): < 10mW
Wireless Range: up to 150m in open area
Songs options: 64 songs selectable
Volume Range: 4 Levels (silent mode included)
Working Frequency: 433.92 MHz±1MHz or 315Mhz±1MHz
Working Temperature: -25℃~65℃
Color Options: White, Black