This wireless chimes allow you to choose between different chime sounds without dealing with all of those annoying wires. The chime is ready to use out of the package; just install the batteries, mount the unit and you are ready to go!
* Product Feature:
1) Pressing the either one of the doorbell button will trigger the wireless receiver to chime
2) Easy to Install, No wiring required
3) ~80M or ~200 FT range
4) Built in anti-interference design
5) Weather resistant push buttons
6) Adjustable volume control
7) 38 melody selectable and blue LED indicator
8) Volume control
9) Receiver voltage: 3V DC, powered by 2 AA batteries (not included)
10) Comes with installation sticker and screws