- The doorbell button usea 23A12V battery (not included) and the receiver voltage is 220v.
- The receiver is a distance of 300 meters (in an open area).
- Just the receiver into an electrical outlet,the push button transmitter can be stickit to the door with provided adhesive t.
- The doorbell can use in the office, home, hospital, factory,restaurant or anywhere need it.
- The receiver has 52 ringtones to choose from, and the volume is 20-80db in 4 levels.
- The doorbell button usea 23A12V battery (not included) and the receiver voltage is 220v.
- The receiver is a distance of 300 meters (in an open area).
- Just the receiver into an electrical outlet,the push button transmitter can be stickit to the door with provided adhesive t.
- The doorbell can use in the office, home, hospital, factory,restaurant or anywhere need it.
- The receiver has 52 ringtones to choose from, and the volume is 20-80db in 4 levels.
