Etymotic Research ER4XR Extended Response In-Ear Earphones

Etymotic Research

Etymotic Research ER4XR Extended Response Precision Matched In-Ear Earphones (Detachable Balanced Armature Drivers, Noise Isolating, High Fidelity, World Leader Response Accuracy) , Black , Standard High performance Balanced Armature drivers are precision matched to within 1 dB Product Note : If the size of the earbud tips does not match the size of your ear canals or the headset is not worn properly in your ears, you may not obtain the correct sound qualities or call performance. Change the earbud tips to ones that fit more snugly in your ears Specially designed for uncompromising accuracy in the mid to high frequencies with a bit of extra presence in the lower end Sleek, anodized, laser etched aluminum body and braided, reinforced detachable 5 ft. Cables with custom MMCX connectors 35-42 dB of noise isolation with a max output of 122 dB Impedance (@1kHz) 4XR (45 ohms) 4SR (45 ohms) Connectivity Technology: Wired Included Components: Headphones, Case, Tip Pack, Manual