Specifications:Brand new and high quality.
Audio: songs,Volume can be adjusted.
Power supply: Receiver: 2*AA batteries (not included).
Remote Control Powered by:12V/23A Battery(include).
Remote controlled distance:50 m.
Voice decibels: 60 to 70dB.
Size ( Doorbell Receiver ) : 98 x 61 x 28mm.
Size ( Remote Control ) : 75 x 42 x 23mm.
Functions:Many music tunes for you to choose,can change the voice.
Press the doorbell button to trigger the wireless receiver doorbell to chime.
No obstruction wirless working distance up to 100 meters and up to 20 meters.
Double side stickers on the back of the remote control button and installation holes back of the doorbell, very easy to install.
Low power consumption，LED light flashing and dancing when music playing, allowing old people or people auditory problem know doorbell is ringing.
Package Included:2 x Doorbell Receivers.
1 x Transmitter.
1 x 12V/23A Battery.
NO Retail Box. Packed Safely in Bubble Bag.
NOTE: We stand behind any product that we sell and will provide full technical support. If any problems, please feel free to contact us before leaving neutral/negative feedback or opening case and give us a chance to resolve your problem.