SE315 Sound Isolating Earphones High-Definition MicroDriver delivers full range audio with Tuned BassPort for optimized low end performance. The SE315 Sound Isolating Earphones feature single High-Definition MicroDrivers for full range audio. The Tuned BassPort optimizes low-end performance utilizing a vented driver. A detachable Kevlar reinforced cable with formable wire allows for easy replacement and secure comfortable fit. Maximum Performance out of a single driver The single driver of the SE315 is housed in a uniquely designed internal assembly. It delivers the maximum performance out of a single driver for a clear and pristine extended audio range - on-stage and on the go. It also has Tuned BassPort technology which optimizes the low end performance. Sound Isolating Design Sound Isolating Earphones were originally developed as Personal Monitor Systems to allow musicians to hear their own performances in loud onstage environments. They work by using soft flexible sleeves to block up to 90 % of the background noise. You can concentrate on your music whether you are on-stage in a train on the street or working out. At the same time you can reduce the audio level to conserve your hearing. Detachable cable with wireform fit The SE315 features a durable Kevlar reinforced cable that allows easy replacement or customisation. The formable wire ensures secure placement and over the ear configuration keeps cables out of the way. The gold plated MMCX connector has a lock-snap mechanism allowing 360 degree rotation for comfortable fit. An assortment of sleeves for individual fit Because every ear is different the Fit Kit includes an assortment of foam and silicone sleeves in different sizes. Experiment with the size and style that creates the best fit for you. A good seal is key to optimizing sound isolation and bass response as well as maximizing comfort during extended wear. Included Fit Kit Soft-zip carrying case An assortment of Sound Isolating foam silicone and t