IME Century Sport MP3 Player Portable Headset Earphone Music Player for Gym Running/Jogging&FM Radio Support Micro SD/TF Card (blue) The wire free head-loop Mp3 player is especially designed for sport lovers. Incorporating the behind-the-neck, over-the-ears design, this headset is extremely comfortable and secure for the most users: bicyclist, runners, joggers, walkers etc. Easy to use, Just save your songs in your TF card and then get it played with this sport player. 3 Key-press: FM/Play/Pause, Volume+/-,Previous/Next LED indicator light