ETYMOTIC ER4SR In-ear Earbuds Black}

Etymotic - ER4-SR
The ER4SR is Etymotic's new reference hi-fi headphones, for those who demand nothing less than the very highest fidelity. The ER4SR is the next generation of our long appreciated flagship, the ER4S, and offers greater accuracy with greater sound output. Like its predecessor, the ER4SR's channels are tuned within an industry-leading 1dB across frequencies from 100 Hz to 10 kHz. The new ER4SR includes significant cosmetic and functional enhancements, from a sleek, anodized and laser-etched aluminum housing to the reinforced, user-replaceable, detachable cable.The ER4SR is a must have for discerning engineers, audiophiles and consumers looking for the most accurate in-ear earphones available....

World leader in sound reproduction
Unsurpassed accurate frequency response and sound quality - 92%+ response accuracy from 20 Hz - 16 kHz The only earphones with balanced armatures, precision-tuned, custom drivers Highest output sensitivity in its class Timeless style and fit.

Professional quality and reliability
An assortment of noise-isolating ear tips for seal and comfort CUSTOM-FIT option available Highest noise isolation

First earphones to completely seal the ear
98% (35 dB - 42 dB) noise isolation - the highest of any earphone or headset on the market today Reduction of outside noise reduces the risk of listening at unsafe levels Best durability and warranty.

Etymotic
True to the ear, that is the meaning of Etymotic. Established in 1983, the brand is a technically driven research, development, and manufacturing company. Etymotic was founded to design research instruments that can accurately detect and assess hearing loss. With the knowledge gained from this, over the years, they have launched several noise-isolating hi-fi earphones on the market. Innovation, education and hearing conservation are at the heart of their manufacturing. This has made the brand a major player in the market for university researchers, hearing care professionals, hearing impaired, professional/amateur musicians and others who demand sound quality. If you choose Etymotic, then you are choosing high-quality IEMs (In Ear Monitors) that are in good taste.

package contents
Earphones Detachable, 150cm cord with 3.5mm gold-plated stereo plug ¼" stereo phone adapter Assorted ear tips Filter removal tool and replacement filters Clip for shirt Zippered storage case Performance Certificate Notice! These in-ear earplugs fall under the category of "hygiene products". The item cannot be returned if it has already been opened.