FiiO delivers with some Kleinkrams, which is very useful. A display foil for example. The amplifier is coupled with my Walkman and is located on the bike in my inside pocket. On his head I wear a Beyerdynamic DT-770 Pro 32 Ohm. Excellent combination. The menu is spartan, but nothing is missing. Once I get into the office, the part is connected to the PC and used in Windows 7 as SPIDF Device. Here again, the settings must be set to 96Khz and studio quality in the system. As a performance I have set 6 dB, the final stage, 12dB, I've never used. By installing the driver FiiO I advise. These provide guiding unpleasant noise, noise, scratches and choppy sound. Windows has been doing this very well.
The battery time is absolutely OK. Great thing, the USB charging function can be switched on and off. This way you can use the battery until it is empty, and then load it again from scratch. He holds the longest.