Extensive Reach: Boasts an impressive range of up to 300 meters , ensuring that you never miss a visitor, whether you are in a large home or a multi-story office building. Variety of Tunes: Comes equipped with 60 different chime melodies, allowing you to personalize the sound of your doorbell to suit your taste and the occasion. Easy Installation: This doorbell features a streamlined installation process with no complicated wiring required. It also includes options for both US and EU plugs, making it versatile and adaptable to different regions. Smart Functionality: Enhance your home's accessibility with a doorbell that integrates seamlessly with your existing smart home systems for convenience and efficiency. Music: 60 pieces of music Volume: 5 levels of volume (adjustable to only flash lights) Emitter: Using CR2032 battery (factory equipped) Receiver: Lights up only when rings Receiver voltage: plugged in to use (AC100-240V) Remote control distance: 300M above ground in a straight line (data from factory laboratory) Due to different batches, there may be differences in product appearance and printed text, which will not affect use. Plug Type:EU Plug,it applies to Indonesia, Germany, France, Spain, Italy and so on. Voltage:AC100-240V Colour:Black Material:ABS Package Contents: 1 * Wireless Doorbell kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.