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 partner Features ... sampling rate, drive 600 ohm headphone and interface to power amplifier, volume controllable, plug-and-play. Specifications: Output power--------------150mW ( 32 ...