This smart wireless doorbell adopts advanced wireless transceiver technology, high-quality voice processing technology, and its performance is stable and reliable. The doorbell, anti-theft, is welcome multi-purpose. Suitable for home, villa, shop, hotel and office, etc.
1.32 songs optional,avoid the same ring with your friends.
2. Doorbell, alarm, welcome multi-purpose.
3. Can recognize up to 30 transmitters without loss of power.
4. Volume 4 is adjustable (cann’t adjust volume at alarm mode and welcome mode).
5. Support multiple doorbell sensor, suitable for large home.
Smart wireless doorbell
Matching with button,the receiver is doorbell mode.Just press the button and the doorbell will receive a signal,you immediately know that is someone coming.
500ft long distance transmission
Long operating range can be up to 500ft(150m) in open space,great for large house including villas, apartment, offices, shops, warehouses, etc.
32 songs for option
32 ringtones for your option,you can select regularly and don’t feel bored.Avoid the same ring with the neighbors.
4 Levels volume adjustable
The volume can be adjusted according to the different environment.
Doorbell&Welcome&Alarm mode in one
Not only a doorbell, but also work as alarm system and welcome system.Our M557 doorbell is compatible with our motion detector and door sensor.
Customize the doorbell on your life
One transmitter can pair with several(max 30) receivers,and one receiver can pair with several(max 30) transmitters.
Easy installation way
Just plug the receiver into a power outlet and attach the transmitter to the door; you don’t even have to make holes or damage anything.
1. Operating voltage: AC 100-220V
2. Working current: <100 mA
3. Wireless frequency: 433 MHz
4. Operating temperature: -10 ° C-50 ° C
5. Wireless distance: 150 meters (open space)
KIT 1: 1 button(cann’t work alone and battery not included)
KIT 2 : 1 receiver+ 1 button (battery not included)
KIT 3 : 1 receiver+ 2 button (battery not included)
KIT 4 : 2 receiver+ 1 button (battery not included)
KIT 5 : 1 receiver+ 1 door sensor (battery not included)
KIT 6 : 1 receiver+ 1 motion detector (battery not included)