Audiophilepure

http://www.innerfidelity.com/content/couple-nice-improvements-astellkern

“lots, each supporting 32GB microSD cards for a total of 96GB of music storage. The AK100 features a single Wolfson WM8740 DAC and output impedance of 22 ohms. With up to 16 hours of continuous music playback, the AK100 is the perfect player for the new audiophile.”