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 ... to achieve unprecedented sonic purity through intelligent engineering, eliminating digital distortion artifacts, and maintaining a pristine analog delivery path. All the ...