Remote Doorbell Waterproof Chime Door Kit with 4 Volume Levels and Mute ModeOOTDTYfeatures: The volume can be adjusted at will: 4 adjustable volumes are provided at any time of the day. Multiple Doorbells Switchable: With multiple ringtones and alarm signals, suitable for any occasion. Easy Installation: Plug and play, convenient to install. Remote control doorbell: The doorbell has a long signal transmission distance, which is very suitable for large facilities such as houses, office buildings, classrooms, etc. Suitable scenarios: suitable for small apartments, office buildings, private villas, etc. Simple and atmospheric design makes the apartment more warm. Be aware of timely customer visits to avoid missing business opportunities. Specification: Material: ABSplug Type: European Standard/UK Standard/American StandardColor: Black/WhiteTransmitter Battery: CR2032 (Not Included)Receiver Voltage: Ac110v - 240v Music Selection: 58 Music Chords (4 Volume Levels Including Mute)Transmitter Size: Approx. 34.26x79.36x20.69mm/1.34x3.12x0.81inch Receiver Size: Approx. 78.5x8 6mm/3.09x3.38inchPackage Included: 1x Transmitter1x ReceiverNote: 1. Please allow 1-2cm errors due to manual measurement, please make sure that you don't mind before placing the order.2. Due to the difference between different monitors, the picture may not reflect the actual color of the item.