JBL Harman Grip 200 Action Sweatproof Sport Wired Stereo Workout Running Jogging Gym In Ear Noise Isolating Headphones Earphones Earbuds for iPhone iPod Samsung - Olive Twistlock patented design, twists and locks into your ear creating a fit that has been tested to never to fall out Sweatproof and designed with strain reliefs and durable materials Made with Flexsoft, an ultra soft material that will never hurt even during long sessions Customize your earphones by opting to listen to 1 bud or 2. Simply snap the unused bud to the cable Ergonomicly designed ear tips allow some ambient noise in which helps athletes to be more aware of their surroundings