PAVEOS 504D Led Wireless Chime Door Doorbell Wireles Remote Control 32 music Features： Easy to Install, no wiring required Remote control range up to 100m in open Widely using in home, offices, hotels, etc Build in-interference desgin, avoid the interference between users to operate and convenient to use Low energy consumption and so Festive and pleasant: 32 kinds of Chinese and foreign famous songs and bells can be , the volume can be adjusted according to the needs, to feel the of visiting relatives and friends; Specification： Input Voltage: 3V Chime: power by 2 x 1.5V AA battery(battery not incluced) battery: 12V 23A Alkaline battery (not included) Doorbell Type: Wireless DIY Supplies: Electrical Model: 504D Size of door bell: 95 x 60 mm Music Sound: 32 melody music Size of Remote Control: 72 x 38mm Color: White Material: Plastic Pacakge include: 1x Remote Control Wireless Door 1x Remote ControlHouseheld supplies for adult and children Design: Our smart household appliances adopts a close-to-life design, just to achieve a satisfying experience for you. Durability: This smart household appliances is made of sturdy and durable materials, which can maintain its functionality even after frequent use. Multipurpose: This smart household appliances can provide convenience for your daily life, whether it is for daily work or home leisure, you can also give it to your husband/wife/family, they will love it! Wide Selection: Discover an extensive range of household tools, from indoor to outdoor accessories, ensuring you find exactly what you need for your home . This smart household appliances will surely fulfill your needs! Service: If you encounter problems in the process of using smart household appliances, please feel free to contact us and we will solve them for you.