Hello there, I bought this charger with my mp3 player because he was mitempfohlen me ... for a charge time there was a loud popping sound and the device began to smoke ... Thank God I was nearby and had the unit to unbeaufsichtet the socket ... MP3 player runs fortunately still !!! The only great thing about the device was then surely only the price ... so at least one point ... buy me now prefer a higher quality power supply !!