4 levels of ringing volume, just click the button to adjust the volume as needed. Even old people can use it with the suitable ringing volume comfortably and conveniently.
There are 38 ringtones for you chose.
IP44 waterproof, withstands various harsh weather conditions
With a reliable wirelessly ranges of 919ft and strong signal, this doorbell is perfect for large residences, businesses. classrooms and more.
Including 1 receiver and 1 transimitter kit, easy installation, build your own simple alert system.
Color: white, black (optional)
Plug: 2 types (optional)
Receiving distance: 280M/919FT
Ringtone available: 38 ringtones
Ringing volume: 4 levels
Voltage: AC110-240V, 50/60Hz
Working frequency: 433.92MHz
Batterys: 1*3V, 500mAh CR2032
Package size: 140*80*60mm/5.51*3.15*2.36in
Packagae weight: 170g/6oz
We have different adapters for your option, please choose the right one that is applicable in your country.