Fosi Audio Q4 Amplificatore per Cuffie Mini Stereo DAC 24 Bit 192 KHz USB Ottico Coa
(Q4 do not support Microphone). RCA output can be connected to amplifier or powered speakers on your desktop; Built-in Hi-Fi headphone amp chip can drive most 16 Ohm to 200 Ohm headphones. Interface Type USB, Coaxial.