Ultimate Ears™ 300 Noise-Isolating Earphones – get moving. These tough earphones have been designed by Ultimate Ears – the choice of the worlds top touring musicians. They wont fall off while youre exercising thanks to the easy-to-use, shapeable ear loops. Made from durable, sweat-resistant materials, your earphones can stand up to even your toughest workouts. With five pairs of soft silicone ear cushions from XXS to L, you wont have to worry about getting a long wearing, comfortable fit – even if youve got small ears. Theyve been tuned for extra bass to keep you rocking. A protective hard case easily fits into your pocket or your bag while youre on the go or at the gym. & you can use your earphones with your iPod, MP3 player or any laptop with a 3.5 mm jack. Designed by Ultimate Ears means you hear the professional sound preferred by the worlds top touring musicians. Your earphones comfortably stay in your ears while youre exercising thanks to the easy-to-use, shapeable ear loops. Durable, sweat-resistant design means they can stand up to even your toughest workouts. Five sizes of soft silicone ear cushions in sizes XXS to L help you get a comfortable fit – even if youve got small ears. Extra bass keeps you rocking.