Magicfly Portable Wireless Doorbell Kit [2 Transmitter 2 Receiver

Wireless doorbell kit
Magicfly wireless doorbell is very easy to install, solve your problem simply.
It’s a timeless, classic design.
It’s a modern fashion high-tech alternative to your old-fashioned doorbell and brings a whole new level of convenience to your daily life.
Pass certificates CE, FCC, POHS, etc.

Receiver
 
No batteries required for main receiver, just plug it into an outlet.
High quality audio speaker
Receiver Working Voltage: AC 110V 50Hz/60Hz Transmitter Battery 12V 23A 
Sound Volume Range: 25-110dB 
Receiver Standby Current: less than 1.0mA 
Receiver Size:80*27.5*87mm;
Adjustable to 4 volume levels
Easily select from 52 chimes/melodies available
You can pairing with the transmitters with the same tones or difference tones.
 High quality audio speaker

Transmitter
Push button (transmitter): push button can be fixed to the doorframe with the screws provided, or attached to the wall using double-sided adhesive tapes.
Wireless support
Doorbell kit of 2 push button (transmitter)and 2 door chimes(receivers) supports a wireless range of up to 1000ft/300m
Distance: the wireless distance achieve
200 meters (300 meters at open area),
Better materials keep stable transmitting range
Transmitter Power Consumption: less than 12V 
Transmitter Working Voltage: no more than 12V 
Transmitter size: 41*18*71mm 

Doorbell kit of 2 push button (transmitter)and 2 door chimes(receivers) supports a wireless range of up to 1000ft/300m
Distance: the wireless distance achieve
200 meters (300 meters at open area),
Better materials keep stable transmitting range
Transmitter Power Consumption: less than 12V 
Transmitter Working Voltage: no more than 12V 
Transmitter size: 41*18*71mm