??Description:<br /><br />Colour:black<br />5cm noise filter<br />Material: Plastic + Electronic components<br />Improvement of +\/- .03db at 20 - 20000Hz.<br />Loose the hum¡ê? noise¡ê? gain sound quality.<br />A brand-new¡ê? unused¡ê? unopened¡ê? undamaged <br />Packaging should be the same as what is found in a retail store<br />1.3dB gain audio transformers. Works with any portable device that has a 3.5mm audio jack on it.<br /><br />Package Included:<br /><br />1 X Noise Filter