Soul by Ludacris RUN FREE - Usain Bolt Limited Edition Bluetooth Headphones Black Bluetooth dongle - Bluetooth Dongle V2.1 & EDR Supports HSP, HFP and A2DP Profiles. Fully Rechargeable with Up To 6 Hours of Continuous Play time and 120 Hours of Stand-by Time. Features Voice Alert and Operation Range of 10 Meters Ultra Comfort & Ideal Fit - In-Ear design seals music in and noise out, Includes Small, Medium, and Large Ear Tips to fit everyone's ear hole size. Comfortable And Convenient Ear Hooks - Designed for the Active User or Athlete to Prevent the In-ear Headphones from Falling Out Versatile In-Ear Headphone Design - Multi-function Design Allows Users to Customize the Headphones to their Specific Needs Advanced Driver And Circuitry Design - Superb Bass, Clear Mids and Highs, Creates High-Precision Audio Balance