1.The button supports up to 20PCS, and the receiver supports up to 100pcs.
2.The transmitter without screw chuck design to achieve waterproof and dustproof.
3.Eye-catching backlight flashes when someone pushes the doorbell. Particularly suitable for the elderly, deaf, and Woman with baby.
4.Uses machine-learning to prevent interference from other wireless transmitters.
5.The transmitter USE a 23A12V alkaline battery (Not include battery).
6.The receiver is available in a variety of plugs, US/EU/UK Plug and AU adapters, suitable for most countries.(EU/US Plug Optional)
7.Receiving distance:300 meters in open area .
8.The wireless signal will be affected by obstacles. The more obstacles, the more serious the signal loss.
9.Receiver has 4 levels(can be mute) 0-80db,38 music to choose from.
Product Weight: 150g
Power Source: AC (Transmitter)
Power Source: Battery (Receiver)
Doorbell Type: Wireless
Volume: 4 levels 0-80dB
Melody: 38 ringtones
The button cannot be placed on an iron door because it will interfere with the signal.
How to pair signals:
Pairing method: Press and hold the volume button on the receiver for about 4 seconds, then immediately press the button, the signal is successfully paired.