Etymotic invented noise-isolating, in-ear earphones. Etymotic's original insert earphone design, developed for auditory research and medical diagnostics, used balanced armature receivers and established these speakers as the gold standard forhigh-definition, in-ear earphones. The ER•4 MicroPro series earphones were the first earphones commercialized using this technology and are recognized as the world leader in response accuracy, to which all other earphones are compared. After more than 20 years, these reference-quality earphones are still the choice of serious sound engineers, audiophiles and musicians.
ER•4PT earphones are intended for sound engineers and audiophiles in constant motion. This model combines all of the acoustic characteristics and features of ER•4P earphones, and comes equipped with extra mobile adapters and accessories for traveling professionals. Included with every pair of ER•4PT earphones is an industry-exclusive channel-matching compliance graph, signed by the Etymotic engineer who precision matched and custom tuned the balanced-armature drivers.
Features
- Highest noise isolation
- World leader in sound reproduction
- Timeless style and fit
- Best durability and warranty
DISCLAIMER: UNFORTUNATELY DUE TO HEALTH & HYGIENE ISSUES, WE DO NOT ACCEPT RETURNS ON EAR-PLUGS OR EAR-PHONES (EXCEPT FOR WARRANTY-BASED FAULTS, WHICH ARE ASSESSED ON A CASE-BY-CASE BASIS).