EMDMAK Door Stop Alarm with 120 dB. Siren Door Stopper for Home and Travel， Black， 2 Piece<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>[Dual Function]: Can be used as a door stop alarm and door stopper， Its high damping rubber bearing can prevent the door sliding and prevent the bad guys into. A protector around you. Can be used in home and travel.</li><li>[3 Level of Sensitivities]: Hige-Midium- Low Sensitivities. Which depends on the distance door touch the door stop alarm.</li><li>[Loud Alarm]: Very loud shrill that would definitely scare someone away with 120db alarm. Weight: 4.5 oz.</li><li>[Powered by 9V Battery]: The door stop alarm powered by 9V battery， One piece can be used for a year under normal circumstances. Very practical. (Note: Battery not include)</li><li>[Easy to Use]: NO installation required， Simply place the alarm behind any door (home， hotel， etc). very convenient to take with you when travel or stay indoor alone. A really must have around you.</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41wtxi6pfQL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41LOycUF9ML.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51FnwjzRsTL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51ijvGPfm8L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51llYQMGqlL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51W3Ts8j-wL.jpg" noproxy>