Shure SE210 Sound Isolating Earphones (White) Hi-Definition sound with bright highs and extra detail Hi-Definition MicroSpeaker delivers wider range and more clarity and detail than standard earbuds Sound Isolation Technology reduces background noise better than noise-cancelling headphones, without batteries or added hiss Deluxe Fit Kit including a selection of interchangeable sleeves for personalized, comfortable fit; 3' extension cable; carrying case Modular Cable Design lets users choose different cable lengths to suit different music player locations (armband, pocket etc.)