Loud Sound RJ11 Telephone Ring Ringer Amplifier<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>The Telephone Sound Amplifier can give out clear and loud sound and it can be used in the noisy places</li><li>Volume: 75dB</li><li>Size: 9.3cm long ( at the longest )， 5.6cm wide ( at the widest )， 2.7cm thick. ( at the thickest )</li><li>Weight: 41g</li><li>Package only included one ringer， no another cables included</li></ul></div><img src="http://ecx.images-amazon.com/images/I/31ajdkabWDL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41bEWPhBR-L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31s5ApiMRFL.jpg" noproxy>