EMASIFF Home Welcome Doorbell Intelligent Wireless Doorbell Waterproof 300M Remote EU Plug

Features 38 ringtones to choose from and 3 step volume control 0 85dB Eye catching backlight flashes when someone pushes the doorbell Particularly suitable for the elderly deaf and children Uses machine learning to prevent interference from other wireless transmitters Designed to last up to 25 years Specifications Working frequency 433 MHzReceiving distance 300M in open area Transmitter size 75 x 51 x 20 mmReceiver size 95 x 65 x 24 mmReceivers Rated voltage AC 110V 220V 240V​The transmitter 12V23A battery factory pre installed battery not included Package Included 1 Black transmitter and 1 Black receiverDetail Pictures