Swann Doorstop Alarm， SWHOM-DOORST<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Powerful 110db+ siren sounds when pressure is applied onto the doorstop</li><li>Simple operation with an on/off switch for the alarm function</li><li>Heavy duty construction to withstand break-in force</li><li>Compact design for discreet positioning at entrance points</li><li>Suitable for indoor use in doorways at main &amp; back entrances， hallways， kitchens， living rooms， hotel rooms， offices， storage areas &amp; more</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41KD2s9L-dL.jpg" noproxy>