Very good first mp3 / mp4 player. Use by my 5 year old daughter was carried out without problem, the visible buttons, few and simple operation of this device allowed him to appropriate it in no time. It is possible by a simple USB connection to a computer to transfer mp3 and mp4 files and organize them by files and sub files. The sound is very decent for this type of toy and excellent image with a relatively large screen and no loss of space. The obligation to create an account on the website of the brand for any use is against very unpleasant, as well as multitudes of excerpts provided initially with the obligation to purchase the remainder of the video is pretty petty. There could be at least one or two complete cartoons! The game did not feature a carton here, games are probably not very interesting for my 5 year old daughter but I have not been watching closely. In short with less incentive to purchase clntenus online and with an AC adapter included with this product would have been 5 stars. Still very satisfied with the product, for the price of an mp3 player, it has an mp3 player and mp4!