Very good mp3 player, I use it when I run or ride my bike. Its original capacity of 4GB can be extended to 12GB (with 8GB Micro SD). Very compact player, good battery life and great tone. The original helmet is not good, I bought a higher quality. Its also very practical clip to hang clothing. I read bad reviews because people have not been able to do the following: - Recharge the battery: it is imperative that it is in "ON" position (on) and then you plug the USB cable. Symbol moving = battery charging battery. Symbol full battery and full load steady = battery. - Resume the last song listened: When playing a title, press the "Play / Pause" button at the bottom of the player, until its extinction. For completely off, do not forget to place the top button on the "OFF" position, otherwise the player is in "sleep" mode and the battery may drain. In this way, the next time you use, the recovery will be done on the last track listened. Frankly, if it is used optimally and that we know what kind of tricks, this player is super top !! While not included in the record, that is tamper strength and use it, found it ;-)
