TECKNET Wireless Doorbell, Door Bells Cordless Plug in IP65 Waterproof White\nProduct Details\n--Ultra-Long Distance Wireless Range: Doorbell wireless boasts a remote connection of up to 400M/1300-FT, and does not interfere with other equipment in your home.\n--IP65 Waterproof & 4.5 Years Durable: IP65 door bell Rated transmitter, with waterproof ring structure, could withstand tough weather (-20\u2103 to 60\u2103). The Transmitter uses the environmentally friendly 3V CR2032 battery, the lifespan is up to 4.5 years.\n--Memory Function: The cordless door bell with memory function remembers the last ring and volume, so there is no need to reset it even after a power failure.\n--60 Melodious Chimes & 5 Volume Levels: Plug in Door Bells Wireless Cordless has 60 selectable ringtones with 5 adjustable volume levels from 0db(LED mode only) to 120db and silent mode to meet your needs.\n--Easy to Install: Simply plug the receiver into a power outlet, and the push button can be fixed te