wireless digital doobell (1)Item No. AG-512E (2)Power Source:AC/DC (3)Radio Frequency :315MHz/433.92MHz (4)Working Voltage:(Receiver)AC:110V/60 Hz&220V/50Hz DC:3V(1.5VAAA*2) (Transmitter)12V23A (5)Operating Current:AC:110V/140mA 220V/70mA DC:≤120mA (6)Multimusic sound:4 chord 20 music/32music (7)Operating Range:Up to 100 metres(open area) (8)Dimension of the figure:Receiver(9.5*5.5*2cm);Transmitter(3.6*7.5*2.5cm) (9)MEAS:AC: 64*33*28cm;DC:47*28*28cm (10)QTY/CTN:60 PCS/ctn (11)Plug type:2-pin round plug;2-pin flat plug; (12) Features of this models: 1. Digital wireless doorbell with LED flashing colourful light when visitors pressing the remote button. 2. Long operating range: Over 3937 inch(100 meters), suitable for homes and high floor houses 3. One million groups of code; different codes technology, preventing interference 4. Easy to install, with double-side stickers at the back of the receiver. 5. No wiring required. 6. Waterproof transmitter 7.Powered by 2 x AAAsize batteries for the door bell (not included); And 1x 12V type 23A battery for the remote button (included with the package). 8.32/4 chord 20 musics to choose, can be set conveniently with a click of a button 9 .ith power-saving features 10.One transmitter can control one doorbells 11.ulti-emitter controls one receiver with different sounds (14)Description: 1.Top discount shop wireless door bell 2. Lines grace,light touch button,various kinds of colors for your choice,can bring you a sence of vision enjoy from lines and colors 3.simple,vivid and no-wire installation design avoid troubles and save money when in installatioin and don’t effect decorate environment 4.build in anti-interference design,avoid the inference between users 5.build in diphonia stereo speakers,make the sound more clearly.Especially suitable for home,office,factories,restaurants and so on.