FiiO E12 Mont Blanc Portable Headphone Amplifier

Smart Recharging User Friendly charging indicator Utilizes LME49710 & LME49600 Op amps, resulting in near-zero distortion at .00003% Large capacity Li-polymer battery provides +/- 11 volts, with total output power up to 850mW USB smartcharge circuit allow charging from laptop/PC, phone, or tablet Ability to drive high-impedance headphones such as planar-magnetic models gain switch, bass boost, and crossfeed durable and attractive aluminum enclosure