8 BG to take with you wherever his music or files. I love its size and design. Only downside: it lacks protection at the end because if it clings to its keys (I suspect that the ring is supplied for this purpose), this induces that they put it in his bag and in his pockets . And then, if something sharp meets his road, I do not know if this could really damage or not ... That said, nothing wrong: it is perfect for small files. Personally, I put to music. 1.84 GB in 4 minutes initially. Then I added in later without time and without filling it completely. Everything is done very simply because my computer has recognized the device on and opened. I am delighted !!!