Jaybird Freedom Sprint Bluetooth Headphones - Midnight Black View larger View larger View larger Jaybird Freedom Sprint Taking the trusted Secure Fit and High Performance Audio Quality of the Freedom, we have enhanced nearly every element of the Freedom Sprint. The Freedom Sprint is 40% smaller than Freedom and boasts 4.5 hours of play-time for all your Wireless Music and Calls. The evolved offering also features a reverse LED light, so it is not visible to others, micro USB charging, a refined cord for improved comfort on the neck and enhanced voice call quality. The Freedom Sprint offers the same trusted patented Secure Fit for Sports, Lifetime Warranty against Sweat and continued focus on Premium Sound and Warm Bass tuned to reduce listener fatigue during long work outs and activity. Secure Fit for Sport Besides being the most secure fitting earphones on the market the Freedom Sprint is also among the most comfortable and snug fitting. 3 sizes of secure fit ear cushion fins, and 3 sizes of sound isolating eartips offers 9 custom fitting options. There is a fit for every ear. Sweat Proof Everything we’ve learned from Freedom has been applied and improved upon in the new Freedom Sprint. We wanted to shift the Freedom’s multi-function button from the front surface to the top surface for improved usability. This presented a problem. How to seal the electronics from sweat with a button on the top side? Solution: A specialized gasket seal under full-time compression from the housing provides water-tight buttons and seal, allowing a more user friendly top-located button while ensuring sweat stays out, and music keeps playing from within. Compatibility Compatible with any A2DP Bluetooth stereo device including iPhone, iPad, iPod Touch, Android, Windows, Blackberry Phones, Moto Actv, iPod nano (now features Bluetooth connectivity), PC, Mac, and gaming devices. Key Features 40% smaller designBluetooth Wireless Music+CallsSecure Fit for SportsLifetime Warranty Against SweatPremium Audio Quality