Description: Wireless doorbells push button with 1 plug-in receiver,this doorbell kit is the perfect choice for home with two floors or two rooms. The receivers offer 36 different tunes and 4 adjustable volume leves ranging from 10 to 85 dB. IP44 waterproof remote control push button can withband the harshest weather. When the button is pressed, the doorbell transmitter and receiver flash at the same time with obvious brightness. Modern and stylish exterior design, Satisfy all kinds of home furnishing, office buildings, hotels, hospital,factories etc. Specifications: Internal Sounds: 36 chimes. Volume: 4 level adjustable levels (25db~85db). Transmitter Power: 1 x 12V 23A battery. Input Voltage: AC110-240V 50/60HZ. Waterproof (Transmitter): IP44. Color:Show as pictures. Size:Show as pictures. Simple installation: Two steps. Fix the remote transmitter on wall or door frame with the adhesive tapes or screws provided in the package, plug the receiver into any UK standard socket. Notice: please take out the plastic gasket of insulation before installing the receiver. Package Includes: Type 1: 1 x Push Button (Transmitter). 1 x Plug-in Chime (Receiver). 2 x Screws. 1 x battery. 1 x Flat-head screwdriver. 1 x User Manual. Type 2: 1 x Push Button (Transmitter). 2 x Plug-in Chime (Receiver). 2 x Screws. 1 x battery. 1 x Flat-head screwdriver. 1 x User Manual.