DAC, Headphone AMP, earphone AMP. Jitter free. USD D/A converter, plug-and-play,convenient ... small,portable,PC HiFi DAC, portable D/A converter, Headphone AMP, earphone AMP. Hifi audio amplier, your best PC music partnerItem: DAC ... music, time and time again.About USGavin Electronics Co.,Ltd, is a manufacturer of precision audio electronics providing breathtaking musical accuracy to HiFi enthusiasts ...