Fiio E07K Andes USB DAC and Portable Headphone Amplifier Black
TI PCM2706 USB receiver, 48 kHz 16-bit support for Windows XP/2000/Vista/7 and Mac OSWolfson WM8740 DAC, ADI AD8692 OP Amp and TI TPA6130A Power AMPHigh performance, excellent resolution, low distortion, and powerful outputStandard 3.5mm stereo line-in jack for portable amplification with analog audio sourcesDual 3.5mm headphone output jack makes it easy to share music between two listeners