Shure SE110 Sound Isolating Earphone with Balanced Armature Driver (Black) Sound Isolation blocks unwanted noise so you can listen to your music at a comfortable level Modular cable design provides you with flexible wearing options and accessory integration with the Music Phone Adapter Personal Fit Kit allows you to find a comfortable fit and keep the earphones stable during physical activity Balanced Armature speakers provide high-definition audio reproduction with extreme detail and precision 2-Year limited manufacturer's warranty with proof of purchase