Doorbells Konnwei

Features: 28 optional Melodies ringtones, and 4 levels of adjustable volume. Convenient for you to choose them randomly. Support AC 100V-240V Voltage, 433.92MHZ Wireless frequency, easy and simple to more→install. The ringing flashing design, can provide much convenience for hearing impaired people. With strong signal and far transmission function. Up to 150 meters wireless range in open area, can reduce the influence of distance successfully. Waterproof and moisture proof function, can be installed anywhere and anytime, no worry about the bad weather. Press to generate electricity, no battery required, is energy saving and practical in use. Specification: Material: ABS plastic Color: White Voltage: …