Smart Waterproof Doorbell Battery 300M Remote 1 2 Button 1 2 3 Receiver US EU UK AU

The button supports up to 20PCS, and the receiver supports up to 100pcs. The transmitter without screw chuck design to achieve waterproof and dustproof. Eye-catching backlight flashes when someone pushes the doorbell. Particularly suitable for the elderly, deaf, and pregnant women. Uses machine-learning to prevent interference from other transmitters. The transmitter USE a 23A12V alkaline battery (not include battery). The receiver is available in a variety of plugs, US/EU/UK Plug and AU adapters, suitable for most countries. Receiving distance:300 meters in opening area The signal will be affected by obstacles. The more obstacles, the more serious the signal loss. Receiver has 4 levels(can be mute) 0-80db,38 music to choose from. Size:Transmitter:69x51x20mm,Receiver:90x61x31mm NOTE:The button cannot be placed on an iron door because it will interfere with the signal. connect to smart phone , please install APP IP doorbell.

• The button supports up to 20PCS, and the receiver supports up to 100pcs.
• The transmitter without screw chuck design to achieve waterproof and dustproof.
• Eye-catching backlight flashes when someone pushes the doorbell. Particularly suitable for the elderly, deaf, and pregnant women.
• Uses machine-learning to prevent interference from other transmitters.
• The transmitter USE a 23A12V alkaline battery (not include battery).