Great little player that I own for nearly 3 months. Excellent price / quality ratio. I have not tested with the supplied headphones, but with Sony intra I used to use, and the sound seems to me perfect. The finish of the device is quite flattering with a matte plastic 'soft touch'. The mini joystick selection presents a somewhat fragile-looking, but I've had in this model and it normally resistant. Autonomy is Royal with a single rechargeable Eneloop good kind: the battery indicator is, however, misleading because it is calibrated for 1.5V batteries are rechargeable while 1.2V. Result, the autonomy gauge falls rapidly from March to January; but no problem it will remain at 1 and 0 for very long hours (I estimate at well over 10 hours). USB transfer is relatively fast, it is USB 2. But to meet its 8 GB must still be patient. No special software to use, it is recognized as a USB flash drive and 8GB will also allow you to store data other than audio. The LCD screen is small indeed full of information (too mp3 / wma, flow ...) and navigation is not necessarily super easy, but you soon get used to it. This kind of tiny player is most convenient for me. No welded battery inside that will force you to replace the entire device after 2 years. It is not difficult to have some rechargeable batteries on hand, especially as the new batteries will discharge almost more time.