B10 52 Chimes 110dB Doorbell Receiver Low Power Consumption Home Door Tools, US Plug, AC 90-260V

1. Fashion appearance, light touch design
2. Easy to install
3. Ultra-low power consumption, power saving, long service life
4. 52 polyphonic ringtones
5. Working voltage: AC 90-260V
6. Working current: 20mA
7. Output power: 3.5W
8. Volume: 5 levels
9. Power consumption: 10mW
10. Sensitivity: -110dbm
11. Working frequency: 433MHz