Jacob Jensen Wireless Doorbell<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>AWARD WINNING DESIGN that is sleek， modern， and elegant.</li><li>LOUD VOLUME is adjustable and can be heard from multiple floors. Five tunes to choose from that are rich， pleasant， and powerful.</li><li>EASY SET UP. Installs within minutes. Long wireless range up to 450 ft.</li><li>One door bell push button and one chime receiver included. Additional bell pushes &amp; chimes can be purchased and added for larger homes.</li><li>LIFETIME warranty. Batteries are included and last up to two years.</li></ul></div><img src="http://ecx.images-amazon.com/images/I/412SixFXi-L.jpg" noproxy>