... gives you stereo music enjoyment. 1.Reader function: plug in TF card, con- nect to computer by USB 2.0 cable ... .3.Play type: MP3,WMA,WVA format, maximum capacity 32GB TF card.4.Sound design: Use best horn, ensure HI-FI ... button, it shut off auto after 30s8.OEM are welcome. TF card style MP3 player headphone with various color