This 192KHz/ 24-bit USB 2.0 7.1-Channel HD Audio box is an easy-to-use? portable audio upgrade device for laptops. It provides 7.1 surround sound output and crystal-clear audio quality for playback and recording. And its powerful headphone amplifier can increase the headphone power output by 3 times in maximum.<br /><br />Features:<br />Supports up to 192KHz/ 24-bit playback and recording.<br />with 6.35mm &amp; 3.5mm headphone outputs? and headphone volume control knob.<br />Two 3.5mm microphone inputs(mono left channel &amp; mono right channel).<br />Buttons for output volume control? play-mute? microphone-mute.<br />Coaxial &amp; Toslink digital input and output for connecting external audio device.<br />Side surround L/R? Center/Subwoofer? Rear surround L/R? Front L/R analog outputs for connecting to speakers.<br />3.5mm analog L/R Line in for connecting to tape/CD/DVD player or other audio sources for output mixing or recording.<br /><br />Specifications:<br />System Requirement: for Windows XP/ Vista/ 7/ 8/ 8.1 or above<br />SNR: around 92dB (A-weighting)@Front Output<br />Max. Headphone Output power (at 1KHz and single channel): around 90mW / 16ohm; around 65mW / 32ohm<br />Headphone Drive Ability: 16 - 150ohm<br />Power Supply: USB bus-powered <br />Item Size: 14 * 9.2 * 3cm / 5.5 * 3.6 * 1.2in<br />Item Weight: 175g / 6.2oz<br /><br />Note:<br />Please install the driver first before using the product. Driver download website: //www.drivers-download.com<br />In&quot;Drivers Search&quot; section? please enter the download code(DL code): DL-0328101 to search for the latest driver.<br /><br />Package List:<br />1 * Audio Box<br />1 * USB Cable<br />1 * User Manual(English)<br><img src="//agdetail.image-gmkt.com/m430/430/854/828854430/img/agdetail.image-gmkt.com/430/854/828854430/img/img.tomtop.com/product/xy/2000/2000/p/gu1/I/9/I3059/I3059-1-a856-X5Wz.jpg" /><br>$$<img src="//agdetail.image-gmkt.com/m430/430/854/828854430/img/agdetail.image-gmkt.com/430/854/828854430/img/img.tomtop.com/product/xy/2000/2000/p/gu1/I/9/I3059/I3059-1-a856-RAb8.jpg" /><br>$$<img src="//agdetail.image-gmkt.com/m430/430/854/828854430/img/agdetail.image-gmkt.com/430/854/828854430/img/img.tomtop.com/product/xy/2000/2000/p/gu1/I/9/I3059/I3059-1-a856-Zpph.jpg" /><br>$$<img src="//agdetail.image-gmkt.com/m430/430/854/828854430/img/agdetail.image-gmkt.com/430/854/828854430/img/img.tomtop.com/product/xy/2000/2000/p/gu1/I/9/I3059/I3059-1-a856-x7Gl.jpg" /><br>$$<img src="//agdetail.image-gmkt.com/m430/430/854/828854430/img/agdetail.image-gmkt.com/430/854/828854430/img/img.tomtop.com/product/xy/2000/2000/p/gu1/I/9/I3059/I3059-1-a856-Mqv8.jpg" /><br>$$<img src="//agdetail.image-gmkt.com/m430/430/854/828854430/img/agdetail.image-gmkt.com/430/854/828854430/img/img.tomtop.com/product/xy/2000/2000/p/gu1/I/9/I3059/I3059-1-a856-yzdG.jpg" /><br>$$<img src="//agdetail.image-gmkt.com/m430/430/854/828854430/img/agdetail.image-gmkt.com/430/854/828854430/img/img.tomtop.com/product/xy/2000/2000/p/gu1/I/9/I3059/I3059-1-a856-kzqR.jpg" /><br>$$<img src="//agdetail.image-gmkt.com/m430/430/854/828854430/img/agdetail.image-gmkt.com/430/854/828854430/img/img.tomtop.com/product/xy/2000/2000/p/gu1/I/9/I3059/I3059-1-a856-9zTa.jpg" /><br>