The choice for discriminating professionals and audiophiles the SE535 utilizes Triple High-Definition MicroDrivers for incredibly spacious sound with rich bass hear the details of your music like never before. Comfortable sound isolating sleeves block up to 37 dB of ambient noise preventing outside noise from interfering with your listening experience whether on-stage or on-the-go. Lightweight low-profile shape with optimized nozzle angle is designed to rest comfortably in the ear. Detachable Cable with Wireform Fit Durable Kevlar reinforced cable allows easy replacement or customization. Formable wire ensures secure placement and over the ear configuration keeps cables out of the way. Gold plated MMCX Connector has a lock-snap mechanism allowing 360 degree rotation for comfortable fit. The Premium Fit Kit Includes Sound Isolating Sleeves Durable compact carrying case Adapter (1/8inch to 1/4inch) Volume Control Airline Adapter Technical Details Speaker Type: Triple High-Definition MicroDrivers Sensitivity: 119 dB SPL/mW Impedance: 36 Ohm Frequency Range: 18Hz ? 19kHz Input Connector: Gold-plated 3.5 mm Cable: 64inch Detachable (at ear) with wireform fit Avoid using headphones with the volume turned up for an extended period of time. Doing so can damage your hearing. It is advisable to keep the volume at a moderate level at all times. For your own safety please do not use when driving or cycling.