Dewenwils Wireless Doorbell Kit Waterproof Push Button， 6 Volume Levels， 36 Chimes， Sound and LED Flash， Portable &amp; Expandable， Battery Operated<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>6 VOLUME LEVELS: Multiple volume options， over 85dB within half a meter， loud enough for you to hear the chimes and open the door quickly for visitors; no more worrying about missing anyone</li><li>GREAT RANGE: Wide operating range - 150m/492ft; IP44 waterproof push button， great for outdoor use; place the battery operated doorbell anywhere you need</li><li>SELECT FROM 3 MODES: Sound， Flash， or Sound+Flash; specially designed with blue LED flash indicator for the hearing impaired; also remember the chimes settings even when receiver is powered off</li><li>PAIRING FUNCTION: You can expand 1 receiver with up to 5 push buttons or add multiple receivers for 1 push button， identify the visitors from different position by different chimes configured on each push button</li><li>EASY TO INSTALL: Simply adhere the push button on the outside of the door frame with a double-sided sticker， and place the portable doorbell anywhere， perfect for your office， apartment and home</li></ul></div><img src="http://ecx.images-amazon.com/images/I/31R3FybvFAL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41-HFNa8V2L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/417xAQRN6gL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/61f4Lsfip8L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/61iQAHAZTvL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/61dCNr3aQ5L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31JB%2BfelwSL.jpg" noproxy>