B10 52 Chimes 110dB Doorbell Receiver Low Power Consumption Home Door Tools, US Plug, AC 90-260V Tag-Attendance System Frequency response: 10Hz-25KHz

Frequency response: 10Hz-25KHz

40HQ: 8684 cartons * 500 pcs = 4342000 pcs

Carton Size 42cm * 47cm * 76cm / 16

General Compatible with Huawei:  Watch GT 3 46mm

B10 52 Chimes 110dB Doorbell Receiver Low Power Consumption Home Door Tools, US Plug, AC 90-260V Tag-Attendance System Frequency response: 10Hz-25KHz1. 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 Specification: General Model B10 Size 8. 2*8. 2*2cm Weight 92g Technical Parameters Volume up to 110dB Package Weight One