🎶 Elevate Your Sound Experience! Upgrade your sound game and be part of the audio revolution. Crafted for audiophiles who demand clarity and detail in every note. Maximize your audio setup with a dedicated Digital Audio Player or headphone amp. Designed for all Etymotic ER series earphones with MMCX connectors. Experience audio like never before with a 2.5mm balanced connection. Discrete Signal MMCX Compatible 2.5mm Balanced The Etymotic ER Series 2.5mm Balanced Cable is engineered for audiophiles, providing a discrete signal for each earphone channel. Compatible with all Etymotic ER series earphones featuring MMCX connectors, this cable requires a compatible Digital Audio Player or headphone amplifier to fully harness its balanced audio capabilities.