Product information:
Power type: AC
Music/Volume: 60 chord music optional/5-speed adjustable volume (including Mute)
Remote control distance: 80m on the open ground (data comes from the factory Laboratory)
Call button:-section 2032 button battery
Transmitter:-12V23A battery
Receiver: AC plug-in supports 110-240V voltage
Call button size: 60mm * 34mm * 11.5mm
Transmitter size: 75mm * 51mm * 20mm
Receiver size: 95mm * 65mm * 24mm
Scope of Application: home use, office building, hospital, hotel, restaurant, factory and other places