1.57 x 0.39 x 0.39 inches

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Designed for Sports: Flexible, secure-fitting silicone ear hooks and an ergonomic design ensure the headphones stay comfortable and secure during hiking, running and other outdoor activities. Three different sizes of silicone eartips are included, designed to fit perfectly without squeezing your ear canal and to be worn for long periods of time without fatigue or pain, giving you comfort from the inside out. IPX7 rated waterproof to withstand common splashes and rain.