Sweat-proof, Rain-proof and Rinse-proof with a secure fit and a clip to hold the cable in place, the HP-S20 Sports Headphones are perfect for daily active wear and strenuous sports or exercise. IPX7 – Water Protection The HP-S20 has a solid protection against water or any other liquids. This means you can wear them comfortably whilst exercising and also allowing you to wash them in between activities.* Rabbit Support Each earpiece on the HP-S20 headphones sport a soft rubber attachment in the shape of a rabbit’s ear, which fits nicely inside your own. It locks the earpiece in place allowing you to move as freely and energetically as you like, without loss of comfort or fit.