... factory produce experience *original chips,good battery *battery operated mp3 player *mp3 aaa battery AAA battery mp3 player battery operated mp3 player2G,4G,8G,16G for option ... music files and so on; 2,FM stereo radio reception and recording, radio and pre-set automatic search function; (optional) 3 ... it will extremely easily caused the built-in lithium battery failure and damage. 3.Pls don't care the ...