🎶 Elevate Your Sound Experience! Sleek anodized aluminum body ensures longevity and style. Braided, reinforced 5ft MMCX cables for easy replacement and customization. Max output of 122 dB delivers powerful sound without distortion. Experience sound accuracy within 1 dB for studio-quality listening. Enjoy 35-42 dB of noise isolation, immersing you in your music. High Fidelity Sound 122 dB Max Output 35-42 dB Noise Isolation The Etymotic Research ER4SR Studio Reference In-Ear Earphones are engineered for audiophiles, featuring precision-matched balanced armature drivers, exceptional noise isolation, and a durable design that combines style with functionality. With detachable cables and a high output performance, these earphones are perfect for anyone seeking an unparalleled listening experience.