1. wireless 2. 38 songs for choice 3. high,middle,low three volume can choice 4. New and high quality 5. High sensity  Introductions: (Wireless digital doorbell HY-V003C)This is a Wireless Remote Control Doorbell. It is in new condition. Simply fix the transmitter outdoors, and have the parrot receiver indoors within 120 meters. It is advised to use in the places where there is enough light, such as the office, home, shops, factories etc.Features:1.New and high quality, made of high-quality material2.High sensitivity3.Extend your home security system. Keeps you aware of intruders or visitors anywhere around your home4.Suitable for Home, Office, Unit, shop, warehouse, shed, Garage etc5.LED indicator in the receiver6.This doorbell has 38 kind of chord bells sound, you may freely choose (the music include Asia, Europe, American famous songs, Arab Music) 

7. Function of volume regulate: high, middle, low three volume can choice8.Wireless digital remote control, do not interfere with each other 9.Completely wireless operation - no wires or cables required Specifications:1.Power ≤ 2W 2.Operating frequency: 315MHZ or 433.92MHZ3.Remote control / receiving distance:about120m4.Emitter working voltage: 12V(battery type: 23A 12V)5.Emitter working current: 15mA6.Material: Plastic7.Weight:201gPackage Included:1 x Digital Wireless Remote Doorbell1 x Power Butto 

             

               

                          

Digital Wireless bell door