CACAZI A20 Smart Home Wireless Doorbell Digital Music Remote Control Doorbell, Style:US Plug(Silver) Filter-Cable Backlight function: support backlight

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CACAZI A20 Smart Home Wireless Doorbell Digital Music Remote Control Doorbell, Style:US Plug(Silver) Filter-Cable Backlight function: support backlight1. Material: ABS, electronic components 2. Power supply mode: AC 3. Receiver power supply voltage: 110 220 (V) 4. Transmitter: 12V, 35A battery (delivered with battery) 5. Music selection: 36 ringtones 6. Volume selection: 4 levels of volume adjustment 7. Power consumption: 1 (W) 8. Working range: 300m 9. Dimensions: Transmitter: 7. 7 x 4. 6 x 2 cm, Receiver: 9 x 5. 6 x 2 cm Specification: Package Weight One Package Weight 0. 19kgs 0. 42lb One Package