CACAZI A78 Smart Wireless Doorbell 60 Chimes Waterproof Cordless Home Flash Door Ring Bell US Plug 1 Button 1 Receiver

Features and Specifications 1 The button supports up to 20PCS and the receiver supports up to 100pcs 2 If multiple buttons are paired with one or more receivers in the same system each button can be set to a different ringtone 3 Power off memory function Turn the power on again after power off no need to re adjust and lock the ringtone 4 The transmitter has no screw chuck design and it can be waterproof and dustproof without rubber ring 5 The transmitter USE a 23A12V alkaline battery not included battery 6 Receiver voltage 110 220V 7 The receiver is available in a variety of plugs US EU UK Plug and AU adapters suitable for most countries 8 Receiving distance 300 meters in open area 9 The wireless signal will be affected by obstacles The more obstacles the more serious the signal loss 10 Receiver has 5 levels can be mute 0 110db 60 music to choose from 11 Size Transmitter 71 8x39 8x19 5mm Receiver 84x52x29mm NOTE 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 5 seconds the light is on release the volume button then press the transmitter immediately the signal is successfully paired How to Modify and Lock Music Plug in the power socket press the music button to adjust to the favorite music ringtone press and hold the volume button again until When the light is on press the transmitter twice immediately and the music is