Astell & Kern AK HC4 Portable USB DAC/Amp (Open Box) headphone 2.5mm allowing them to work together

allowing them to work together seamlessly

This design is good both for comfortability and sound quality

Its sturdy construction and non-slip rubber surround mean you can hit it as hard as you want during performances

Earzfit Signature Fit

More than 50 different colors including pastels set apart Maine leather-accented products from the rest

Astell & Kern AK HC4 Portable USB DAC/Amp (Open Box) headphone 2.5mm allowing them to work togetherHi Fi Sound on the Move, AK HC4 Astell&Kern offers a Hi Fi USB DAC cable product range for a true Hi Fi experience on smartphones and PCs. The Hi Fi sound provided by Astell&Kern's design, which was completed in a small size, has won praise from countless audiophiles and media. The AK HC4 continues the advantages of its highly acclaimed predecessors, delivering even more perfected sound in various usage scenarios through advanced design. Featuring