Etymotic Research ER4SR Studio Reference Precision Matched In-Ear Earphones Philips Audio [Endurance Time ] With built-in

[Endurance Time ] With built-in 250mAh Polymer Battery

The 1000mAh battery offers up to 35 hours of listening to bluetooth audio with noise canceling activated

/Swivel mechanism that can be flat housing part

EAN: 809394581917

and financial functions

Etymotic Research ER4SR Studio Reference Precision Matched In-Ear Earphones Philips Audio [Endurance Time ] With built-inBrand: Etymotic Research Color: Black Features: High performance balanced Armature drivers are precision matched to within 1 dB Sleek, anodized, laser etched aluminum body Braided, reinforced 5ft detachable MMCX cables 35 42 dB of noise isolation with a max output of 122 dB Precision machined metal bodies with anodized finish Publisher: Etymotic Research Details: The Etymotic Research ER4SR is the new reference standard in ear monitor for those who