DAC, Headphone AMP, earphone AMP. Jitter free. USD D/A converter, plug-and-play, ... ,portable,PC HiFi DAC, portable D/A converter, Headphone AMP, earphone AMP. Hifi audio amplier, your best PC music partnerItem: DAC ... orders.Experience it and enjoy! Hifi Asynchronous DAC,headphone amp,earphone amp