The Astell & Kern Astell& Kern HC2 Hi-Fi Dual DAC Amplifier Cable offers hi-res audio that will refine the sound of your headphones. The 4.4mm balanced output & 4 Vrms of power will create an immersive listening experience. Equipped with a CS43198 Dual DAC the HC2 cable can transmit robust audio signals that will add immense precision to your music. It also provides rear audio output in order to reduce distortion & background noise further optimising the sound. The Astell & Kern HC2 is harnessed with a dual noise-shielded cable that offers an authentic sound with the copper core wire enabling long durability. Compatible with most IOS/ Android devices Windows 10/11 & mac OS products the HC2 will unleash the full potential of your music. This USB (Universal Serial Bus) DACs volume can be easily controlled via a dedicated Andriod OS app.