Portable Wireless Doorbell Kit - IntiPal Doorbell Set 1000 Ft Operating 52 Chimes Volume Adjustable Plugin No Batteries Required for Receiver IP55 Waterproof Transmitter with Push Button Long Range-Transmission range up to 1000 ft/300 m in the open air,approximately 300 to 700 ft in residencies as lots of walls and doors are involved. Multiple Chimes and Volume Adjustable-Glamouric portable wireless doorbell kit has 52 different chimes for your choice,4 levels of volume adjustable(30-110db). Plugin Receiver-No batteries required for the receiver,you can simply plug it into an electrical socket,it gives out a white flash for a friendly hint. Waterproof Transmitter-Rated IP55 waterproof for outdoor use,it has a transparent message box for notes.The LED push button flashes in blue as an indicator. Easy to Install-Coming with a double-sided adhesive tape,screws and a mini screwdriver,this doorbell set could be installed real quick.