Astell & Kern HC4: USB DAC for Smartphones Without a Headphone Jack

The HC4 USB-DAC was developed to fill the gap created by the absence of headphone jacks. It allows headphones and earphones to be connected to smartphones without compromising on audio quality. With Astell & Kern's innovative technology, the HC4 USB-DAC ensures sophisticated music enjoyment on the go. More on this from Clark Jungmann. Enjoy!

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