Instruct: Classify an Amazon review into positive or negative sentiment.
Query: not the best mp3 player you can buy

very usless and dangerous!!!!!! I got mine a month ago and first of all you cant even change the volume setting once you ajust it. Second the battery life is terrible and doesnt even last the one whole day. LAST I WAS RECHARGING IT OVER NIGHT AND THE NEXT MORNING THE MP3 PLAYERS MIDDLE BUTTON HAD COMPLETLY MELTED, JUST FROM RECHARGING IT!!!