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!
Features
• Pressing the doorbell button will trigger the two wireless receiver to chime
• Easy to Install， No wiring required
• ~80M or ~200 FT range
• Built in anti-interference design
• Weather resistant push buttons
• Adjustable volume control
