{"product_id":"er4-sr-studio-reference-earphones","title":"ER4® SR - Studio Reference Earphones","description":"\u003cp\u003eOver 30 years ago, Etymotic invented noise-isolating, in-ear earphones. Etymotic's original design, developed for auditory research and hearing testing, used balanced – armature receivers and established these speakers as the gold standard for high-definition, in-ear earphones. ER4 earphones were the first high-fidelity, noise isolating in-ear earphones to use this technology in a consumer earphone, and are recognized as the world leader for response accuracy to which all other earphones are compared.\u003c\/p\u003e","brand":"Etymotic","offers":[{"title":"Default Title","offer_id":53841662476452,"sku":"00214953","price":349.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1641\/1633\/files\/00214953-wl.jpg?v=1790856428","url":"https:\/\/studiosenter.com\/products\/er4-sr-studio-reference-earphones","provider":"Studio Senter","version":"1.0","type":"link"}