ATTENTION! For purists, the info in this article packaging APM is false. Indeed, it is announced in large letters that the output current is 5V, 500 mA. WRONG! Once the "packet" open label (required) affixed to the unit announces (lowercase) a current of 1 A (1000 mA), or - still - twice. It recharges probably faster, but be careful of overheating your favorite player that is made to be recharged from any USB port or 500 mA. Obviously, even Amazon, whose seriousness is well known, was made "trap" (in good faith in no doubt). PS: a small tower on the site of APM, and the product is described as having 1 A output. The given information is therefore false. I'm still waiting APM response following my electronic contact.