Bluetooth®-enabled wireless connectivity Built-in 4.0 Bluetooth connectivity gives you freedom from wires and up to 5 hours of your favorite soundtracks. It allows you to monitor volume and easily control tracks even while your smartphone remains safe in your gym bag – up to 40 feet away! Reflective cord design and retractable tether Make the play for safety - the Reflect BT's sweatproof cable provides high visibility in low light, perfect for night time runners. A retractable tether allows you to customize cord length. Ergonomic ear-tips and angled ear pieces Designed to stay in your ear no matter what you put them through. Cable management system with serious attraction Built-in magnets keep your buds on stand-by; when not in use, wrap the buds around your neck and watch them click together. No more loose cables! iOS or universal remote control/mic Connectivity. Convenience. Peace-of-mind. Take calls, control tracks and adjust volume with rugged inline controls. Groundbreaking JBL-quality sound Dual 8.5mm drivers give you thumping bass and clear vocals for the ultimate pump-you-up track.