... enhances musical and call clarity Description:Sports Running Wireless Handsfree Headset Headphone Earphone Micro SD TF Card Slot MP3 Music ... Incorporating the behind-the-neck, over-the-ears design, this headset is extremely comfortable and secure for the most users: bicyclist ... music format.No software required: Manage memory storage on the headset by connecting it to PC via USB cableColor: Black, ...