Philips ActionFit RunWild sports headphones push you to a new personal best. Feather-light and waterproof, with a customizable fit. Meanwhile high-power drivers deliver deep bass to keep your body moving | Open acoustic design lets you be aware of your surroundings | High performance sound pushes you further | Open acoustics let sound in for better awareness and safety | Extreme comfort for training: 4.69gm ultralight headphones | Personalize your fit with ear hook, fin or earbud styles | Control your music and pick up calls while training | Cable clip included for tangle-free workout | Ideal for intense workouts with IPX4 water resistance | Kevlar® reinforced cable for ultimate durability | Washable after workouts