Wireless doorbell chime doorbells and chimes from original factory Specification:1, Doorbell chime Unique fashion design;2, With "editing coding" to prevent interference;3, 200 meter range(on open air);4, 48 selectable musical tones;5, 4 volume levels;6, Waterproof range IP44;7, Low power consumption for long battery life.8,CE, FCC,..