2 Plug-in Receivers with 2 Remote Transmitter:This wireless doorbell set comes with 2 plug-in receivers and 2 battery-powered push button, enabling you to catch every doorbell ring tone in any corner of your house with one upstairs and one downstairs.
38 Melodies with 3-Level of Adjustable Volume: The wireless doorbell offers a wide selection of 38 chimes for your personal taste, including Christmas song (jingle bells) and more. 3-level of volume range from 20dB to 85dB.
Up to 1000 Feet (300m) Long Range:Operating range up to 1000ft/300m in open area when there are no obstructions, ensures you to hear the bell and answer the door in time.
DIY Expandability and Low Power Consumption: You can expand each transmitters with up to 10 receiver. Code learning function makes it easy to customize your doorbell with multiple transmitters and receivers. Powered by 12V 23A battery, the transmitter is tested to ensure up to 10,000 times of press for daily use, eliminating needs of replacing battery frequently.
Easy Installation and IP44 Waterproof Transmitter: Just plug the receiver into a wall outlet, install the push button with provided double sided tape or screw it to the wall (screws are included).The push button is rated IP44 and weatherproof for outdoor use