The Studio-V is the only player that allows you to completely adjust the sound signature with various firmware and not simply by adjusting the EQ settings (currently two options for armature earphones and one for dynamic)
Up to 85 hours of audio playback
Built-in Class A amplifier
A three in one gadget, operate as a Digital Audio Player, Digital Audio Converter and an audio amplifier via line out.
30mW power output
Robust black aluminum alloy enclosure with anti scratch