Sony Water Resistant Active Sport Style Stereo Headphones Compatible with all Apple iPhones, iPods, iPads and Laptop Computers Ultimate Sound = These Sony headphones deliver dependable, high quality audio reproduction time after time. Equipped with 9 mm high-sensitivity driver units and high performance neodymium magnets for outstanding bass, these dynamic sports style headset is no different while also affording a secure, comfortable fit that lets you workout without any discomfort or worries. Secure Fit Active Style Adjustable Ear Loop = Easily adjust for a precise fit by looping the ear loop around the ear and pulling snug. Once in place, the earbuds stay put, letting you go about freely. Supplied hybrid silicone earbuds, in 4 sizes, allow for a tailored fit that maximizes overall sound quality and comfort. Water Resistant housing prevents sweat and water from leaking in, making these headphones ideal for an active lifestyle without worrying about sweating or getting caught in the rain. Built-In Mic = In-line Omni-Directional Electret Condensor Microphone is placed perfectly to be the correct distance to clearly relay your conversation and makes it easy to take calls in any situation, while driving, biking, playing sports, exercising or working. In-Line Remote gives you control of volume and tracks (Play, Stop, Next/Prior) for all Apple devices.