Its a shame you have to purchase this seperately instead of having it come with the player, as its quite essential and vital to getting a proper charge from your player.I only charge with this charger and don't even use the USB charging function, as USB charging messes up your battery faster, over time.Get this, and get a spare battery. You'll thank me later.Specs of charger:Model: CS-0501000Input: ~100V-240V, 50/60 HzOutput: DC 5.0 Volts, 1.0 Amps~4 foot USB cord total, comes with the USB cable that lets you connect the TrekStor Vibez (and any other USB device) to your computer to transfer data and/or charge via your USB port. Its actually a bit longer then that when you stretch it out, but its more then adequete for most people's needs. Should know that it charges any small electronic device that has a USB port and accepts the volt/amp ratings listed above.