Wireless Doorbell, TeckNet Waterproof LED Door Bell Chime Kit with 1 Push Button and 1 Plug in Receiver, Operating at over 200m/656ft Range with 48 Chimes High Performance Designs - Operating range of over 600 feet. Remote transmitter button is rated IP44 waterproof and are qualified for outdoor use Multiple Volume Option - 48 different classic ring tones. Four levels of adjustable volume from 50db to 80db Package contents - 1xTransmitter (Battery Included), 1xReceiver, 2xScrews, 2xScrew-Joint Couplings, 1xDouble-Sided Adhesive Tape, 1xUser Manual, 1xWarranty Card. Free lifetime technical support and 18-month manufacturer's warranty