SMSL T2 Vacuum Tube Mini Audio HiFi Stereo Headphone Amplifier w/ Tube 2X6J9<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Low Ground Noise: There’s no buzzing or ringing when you use our amp! We feature a high-grade microprocessor that controls the relay while its being switched on and off， achieving a low-ground noise power circuit. </span></li><li><span class="a-list-item"> Sophisticated Design: Our amp is constructed from top of the line， scratch resistant CNC aluminum. </span></li><li><span class="a-list-item"> High Drive Current: Our specially designed power output boasts a larger than average drive current. </span></li><li><span class="a-list-item"> Semi-Set Tube Design: As a safety measure， the high temperature portion of the tube is strategically placed inside of the amp and out of reach. </span></li><li><span class="a-list-item"> Small Compact Size &amp; 2 X 6J9 J-Grade Tubes: The dimensions of our amp are 2.9inX3.5inX1.02in， and you can replace the stock tubes with E180F， 6ж9П， EF861， and 6688 tubes if you wish to be able to cue music. </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41r-RSDlXBL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41i78sRqT6L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51pjjofn8jL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/416C0hSrFzL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41llEx19TQL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41EEklEDraL.jpg" noproxy>