AVANTEK Wireless Doorbell Operating at Over 1，300 Feet with 2 Plug-In Receivers， 52 Melodies to Choose From<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>EASY TO SET UP: Can be installed simply by just fixing the transmitter on the wall without any wiring; includes 2 screws， 2 anchors， 1 key and 1 double-sided bonding tape</li><li>400 M/1，312 FT ULTRA LONG WIRELESS RANGE: 2 plug-in receivers included; will not interfere with other equipment in your home or those of your neighbors; ensures you will never miss a visitor， even if you are a few rooms away or on another floor</li><li>52 CHIMES TO CHOOSE FROM: 40 mm stereo speaker delivers rich and crisp sound; 5 adjustable volume levels with a maximum setting of 115 dB; press Next or Previous button to easily choose from 52 melodies</li><li>HIGH PERFORMANCE TRANSMITTER: Ultra-low power consumption; uses CR2032 lithium battery that boasts 3-year maximum lifespan; IP55 dustproof and waterproof rating; works between -4 °F to 140 °F; withstands various harsh weather conditions</li><li>MEMORY FUNCTION: Remembers your last melody and volume level after a power outage; no need to reset to your previous settings; convenient and easy-to-use design for an enhanced user experience</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41izdlAHuQL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51fRJ64qS2L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41yN1lPq3KL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51K6ZSya%2BsL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41Yum50LbCL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51y8oY9hf0L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41YgNHMJdlL.jpg" noproxy>