iFi Audio Micro iDSD BL Headphone Amplifier and USB DAC - Black Label for sale online | eBay
micro iDSD Signature by iFi audio - Supercharged desktop and transportable USB DAC and headphone amp
iFi iDSD Black Label: Swiss Army knife utility, top tier sound and flexibility that does everything extremely well, so much value it's just unfair to the competition – Audio Primate