Ifecco Wireless Doorbell Kit, 1000ft Remote Control with 36 Chimes and Receivers, 4 Level Volume and LED Flash (Battery Included) 1000 Feet Control Range: Operating range of 1000 feet in open area. Remote transmitter button is rated IP44 waterproof and acceptable for outdoor use. 36 Chimes & 4 Volume Level -- Press the upper side button to switch between 36 ring-tones, the other side buttons to change volume between 4 levels. So Easy to Install: Plug receiver into an electrical outlet, the transmitter can be fixed to the wall or other area you want, with the attached adhesive tapes. IP44 Dustproof & Water Resistant -- The remote control push button can effectively keep its central parts from rain splashing or dust. We recommend you stick the button on walls away from sun exposure or high temperature, as they will increase the case aging and reduce its lifespan. 1-Year Warranty: offers 30-day free money back, 1-year warranty and life-long technical support. Any question will be responded within 10 hours.