CROSSPOINT Extra Add-On Battery Free Plugin Receiver for the CROSSPOINT Expandable Wireless Doorbell Alert System， Model ER， White<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>EXTRA ADD-ON RECEIVER. 2016 NEW MODEL. NOW WITH NEW &amp; IMPROVED CHIMES/RINGTONES. CROSSPOINT EXPANDABLE DOORBELL COMPATIBLE System in White (be sure to check out our other colors in Black or Beige to match your home perfectly). Includes 1 extra plugin receiver.</li><li>EXPANDABLE DOORBELL SYSTEM LETS YOU DESIGN YOUR HOME-ALERT NETWORK with 20+ additional receivers， transmitters， and motion or door sensors. Custom build your own system that fits for your needs. Easy to use pair-able code technology allows you to mix and match Crosspoint components easily with one or multiple receivers.</li><li>ASSIGN UNIQUE RINGTONES to each transmitter to instantly know which one was triggered. Over 50 different melodies and ringtones make this the ideal wireless doorbell system for multi-entry structures. Four levels of adjustable volume from 25db to 110db.</li><li>OVER 500-FOOT LONG-RANGE OPERATION penetrates steel doors， exterior walls and interior walls. No new wiring required for implementation. SIMPLY PLUG RECEIVER INTO ELECTRICAL OUTLET (no batteries required for main receiver). Easy to install with included mounting hardware and basic tools</li><li>INTEGRATED RECEIVER MEMORY retains chime selection when unit is unplugged or powered off. Waterproof IP44 rating makes remote doorbell transmitter buttons impervious to rain or other inclement weather</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41RshBOjagL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41pwlPACHsL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/316xmJVNVsL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41R9mMTJ37L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41Q%2B0bGr%2BzL.jpg" noproxy>