... USB cable.Function Introduction1.This product is suitable for sports, leisure, office people, can use in travel, ... of theline, enjoy portable, lightweight, stylish, trend, new, unique, fun, high-fidelity sound !3.Stylish and ... joy and comfort of music in sports;4.Very suitable for sports enthusiasts, the ultra-lightweight design, ... the long time too. 2012 new Sports MP3 wireless stereo earphone/headphone