Easy installation: Simply plug the receiver into a power outlet and attach the transmitter to the exterior wall using the included screws or adhesive. Long reception range: The range is up to 200 meters and won't interfere with other devices in your home or those of your neighbors. Never miss a visitor again. Alarm clock: 58 musical alarms, 4 volume levels selectable. When you press the button, the doorbell transmitter and receiver will beep simultaneously. Waterproof and energy-saving transmitter: The remote control button features an ultra-low power design and is IP44 waterproof and dustproof. Product parameters: Product material: environmentally friendly ABS plastic. Transmitter waterproof rating: IP44. Receiver rated voltage: AC 110-240 V, 50-60 Hz. Receiver controllable: 50-100 dB, 4 levels adjustable. Operating frequency: 433 MHz. Receiver standby power:
