CACAZI New Wireless Doorbell Waterproof 300M Remote EU AU UK US Plug smart Door Bell Chime battery 1 2 button 1 2 3 receiver AC

Key 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 pregnant women If paired with multiple push units in one system, the chime can be set individually for each push unit Uses machine-learning to prevent interference from other wireless transmitters Designed to last up to 25 years Receiving distance: 300M(in open area)