Areox Remote Wireless Doorbell Portable Waterproof Door Chimes Wireless doorbell operating range of 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 50+ music tunes for you to choose,can change the voice on 4 level