Areox Plug in Push Button Door Chime Kits Wood Grain Portable Waterproof Doorbell Wireless Door Chime with LED Indicator 52 Tones Long Range Easy to Install Wireless doorbell operating range of over 1000 feet ( in open area), you can receive the signal whether you are busy working on your computer in the home office or sharpening your culinary skills in the kitchen. Completely wireless operation--no wires or cables required IP44 Waterproof/Dustproof Portable Door-Bell Kit Includes 1 plugin receiver unit and 1 remote transmitter button,manual 50+ music tunes for you to choose,can turn the voice on 4 level