If you prefer a modest boost in bass, these Etymotic ER3XR Extended Response earphones deliver the same sound quality as the ER3SE, for portable media players along with a stronger low end response.
You get the same top-level high fidelity from the use of gold standard balanced armature drivers as along with highly accurate sound reproduction from the mids and highs, but with a boost in bass.
ER3XR earphones come with the same sleek precision machined metal bodies, reinforced, user-replaceable detachable cable and Lightning to 3.5mm capabilities, making it mobile ready.
