Trainer by Gibson TH100/27 Sports Headphones designed with Usain Bolt, BLK When you move, it doesn't. Trigger the Aero Flex rail to stabilize the Trainer - so you can stay focused on pushing your limits. No cables to hold you back. Enjoy your music with Bluetooth technology, while maintaining incredible sound quality. Weather Seal ensures the Trainer is protected from water and sweat - so you can run hard, rain or shine. Activating Safe Sound turns down the volume and reduces the bass so that you stay alert to your surroundings. Strategically placed Night Nav LED lights ensure you can be seen in the dark - no matter where your run takes you..Connectivity Technology: Wired