Wireless Doorbell Range Door Bells 1 PUSH BUTTON AND 2 Plug-in RECEIVER IP44 Doorbell Cordless Doorbell Home Features: 1 PUSH BUTTON AND 2 RECEIVER:Wireless doorbells push button with 1 plug-in receiver,this doorbell kit is the perfect choice for home with two floors or two rooms.Door bells for home,office,villas,apartment,hospita,hotel,business LONG-DISTANC WIRELESS RANGE:The wireless signals up to 1000 feets in open space and doesn't interfere with other equipments in your home or those of your neighbors;ensure that you will never any visitors,even if you are several rooms away. PLEASANT CHIMES:The receivers offer 52 different tunes and 4 Adjustabl volume leves ranging from 0 to 100 dB;an LED indicator alrets those with impaired hearing or when doorbell sound is unwanted. AND ENERGY SAVING TRANSMITTER:Ultra low power consumption with packaged 12V alkaline battery,IP44 remote control push button tested in temperatures of -4F to 140F;withstand the harshest weather. EASY INSTALLATION:Simply plug the receiver into a power outlet and attch the transmitter on the wall or door frame with adhesive patch or screws included. Product Description: Easy Installation 1.Choose the installation location, wipe clean. 2. 1: the bottom cover of the transmitter and double-sided adhesive sticker. Place it in where it needs to be installed. Press hard for 5 seconds until it is secured. 2: There are reserved screw holes on the back of the transmitter back case Attach the back case to the wall with screw Specification 2 electronic chimes + 1 button devices Power Supply:Receiver(AC80-260V),Transmitter(include 12V 23A alkaline battery) 1000ft / 300m maximum effective range IP44 & proof casing for outdoor use Button working temperature: -4F to 140F Package 1 x Transmitter (included 12V 3A battery ) 2 x Plug-in receiver 1 x Adhesive patch 2 x Screws 1 x User Manual