1.Press the button, super learning code can freely learn to match, can be unlimited matching receiver. 2.Instead of using a battery, the button converts kinetic energy into electrical energy and sends a signal when pressed. 3.The transmitter can work normally in snow or high temperature environment, waterproof and dustproof. 4.The receiver voltage is 220v. 5.The receiver is a distance of 200 meters (in an open area), which may be affected by the environment and obstacles. 6.Eye-catching backlight flashes when someone pushes the doorbell. Particularly suitable for the elderly, deaf, and pregnant women. 7.The receiver has 48 ringtones to choose from, and the volume is 0-80db in 6levels. 8.The receivers has US, EU, UK Plug and AU adapter, suitable for most countries. 9.Just plug the receiver into an electrical outlet,the push button transmitter can be stick it to the door with provided adhesive tapes. 10.Button size:79*45*22mm 11.Receiver size:100*57*25mm Note: The button cannot be placed on an iron door because it will interfere with the signal. If the receiver does not ring when the button is pressed after receiving the doorbell, please pair the doorbell.
How to pair signals?
Pairing method: Press and hold the music button on the receiver for about 4 seconds (the indicator lights up), then press the button immediately and the signal is successfully paired.