HifiMan Electronics HM-901 High-Resolution High-Fideltiy Portable Music Player (Black)

The HM-901 is a state-of-the-art, portable music player that provides unrivaled sound quality, accepts a wide array of audio formats, is expandable and best of all, easy to operate.Two ES9148 32 bit DAC chips are used for highest sound quality. Each chip for each channel converts the digital signal to analog signal. The HM-901 also incorporates a balanced output earphone jack.The HM-901 is expandable via multiple cards, including the standard card, the balanced card and the minibox card with more to come. These cards can offer you various listening experience that even the most demanding audiophiles and music lovers will appreciate.The new TAICHI UI is very friendly for fast response and simple operation. A step potentiometer for volume control has been selected for best sound quality.Exceptional value, excellent sound Two ES9018 DAC chips for highest sound quality Innovative expandable design New TAICHI UI  Compatible music formats Specifications:Dimensions: 72mm W* 117mm H* 29mm D Weight: 250g Battery life: 9 hours D/A Chip: ES9018*2 LPF: OPA2107*2, OPA627*2 Headphone Amp Op-amp: AD8397 Frequency response: 20HZ-20KHz Memory: 128G SD Slot