New Fashional Handsfree Sports Headphone MP3 Music Player with 4GB Capacity (Black Color) Handsfree and wireless sports MP3 player, enjoy your gym or outside sports and music at the same time 4GB Capacity, you can save about 1000 songs Support most pop mp3 and wma format musics. Pls do not set up new folders when saving songs Unique cord-free design, adjust to the most comforatable way you like Built-in rechargeable li-ion battery. Automatic turn off while not under use for setting time.