The i Fi Audio Go Link Headphone Amp & DAC is the latest addition to i Fis GO series & a game-changer for wired headphone users. This ultraportable DAC/headphone amp dongle links corded headphones & earphones to digital devices that lack a 3.5mm headphone output. But its not just a connector; the GO link significantly enhances sound quality with its sophisticated digital-to-analogue converter & headphone amp circuitry outperforming the audio tech in mobile devices & computers.