Etymotic Limited Edition ER3 With Lightning Adapter and Dual Flange Tips Version:ER3XR the best acoustic quality is

the best acoustic quality is a matter of course for Ultrasone

The look of this exquisite metal is enriched by the headphone’s dark

and satin black

On its fascia

Etymotic Limited Edition ER3 With Lightning Adapter and Dual Flange Tips Version:ER3XR the best acoustic quality isER3 With Lightning Adapter and Dual Flange Tips Quick Overview The ER3SE Studio Edition provides a high level of sensitivity, making it a perfect match for the portable media players on the market today. The ER3SE offers audio professional grade sound reproduction at an affordable price. The ER3XR Extended Response offers a modest bass boost, building on the sound quality of the ER3SE, while providing a slight bass boost for those listeners that