{"product_id":"fosi-audio-im4-hifi-wired-earphones-open-back-dynamic-drivers-iem-headphones-for-music-monitoring-gaming-earbuds","title":"Fosi Audio IM4 — Open-Back IEM","description":"\u003ch2 style=\"color:#00e5ff;font-size:22px;letter-spacing:3px;text-shadow:0 0 10px #00e5ff88;\"\u003e🎧 FOSI AUDIO IM4 — OPEN-BACK DYNAMIC IEM\u003c\/h2\u003e\u003cp style=\"color:#b0bec5;font-style:italic;font-size:15px;letter-spacing:1px;\"\u003eOpen air. Open sound. The natural soundstage you never knew you were missing.\u003c\/p\u003e\u003chr style=\"border:none;border-top:1px solid #00e5ff44;margin:16px 0;\"\u003e\u003ch3 style=\"color:#e040fb;font-size:15px;letter-spacing:2px;\"\u003e⚡ KEY FEATURES\u003c\/h3\u003e\u003cul style=\"color:#cfd8dc;line-height:2.2;\"\u003e\n\u003cli\u003e🔬 \u003cstrong\u003e10mm N52 Dual-Magnet Dual-Cavity Driver\u003c\/strong\u003e — high resolution, wide dynamic range, low distortion\u003c\/li\u003e\n\u003cli\u003e💎 \u003cstrong\u003ePU Beryllium-Coated Diaphragm\u003c\/strong\u003e — ultra-fast transient response, pure tonal accuracy\u003c\/li\u003e\n\u003cli\u003e🌊 \u003cstrong\u003eOpen-Back Design\u003c\/strong\u003e — natural, fatigue-free soundstage for extended listening\u003c\/li\u003e\n\u003cli\u003e🏗️ \u003cstrong\u003eCNC 6063 Aluminum Alloy Housing\u003c\/strong\u003e — skin-friendly, premium texture, built to last\u003c\/li\u003e\n\u003cli\u003e🧵 \u003cstrong\u003e4-Core 392-Strand 5N OFC Silver-Plated Cable\u003c\/strong\u003e — clean signal, low resistance\u003c\/li\u003e\n\u003cli\u003e🔌 \u003cstrong\u003e2-Pin 0.78mm Detachable Connector\u003c\/strong\u003e — upgradeable, universal compatibility\u003c\/li\u003e\n\u003cli\u003e⚡ \u003cstrong\u003eOnly 7g per earbud\u003c\/strong\u003e — all-day comfort, zero fatigue\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr style=\"border:none;border-top:1px solid #e040fb44;margin:16px 0;\"\u003e\u003ch3 style=\"color:#e040fb;font-size:15px;letter-spacing:2px;\"\u003e📋 SPECIFICATIONS\u003c\/h3\u003e\u003ctable style=\"width:100%;border-collapse:collapse;font-size:13px;color:#cfd8dc;\"\u003e\n\u003ctr style=\"background:#0d0d1a;\"\u003e\n\u003ctd style=\"padding:8px 12px;\"\u003eDriver\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;\"\u003e10mm N52 Dual-Magnet Dual-Cavity DD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#111122;\"\u003e\n\u003ctd style=\"padding:8px 12px;\"\u003eDiaphragm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;\"\u003ePU Beryllium-Coated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#0d0d1a;\"\u003e\n\u003ctd style=\"padding:8px 12px;\"\u003eSensitivity\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;\"\u003e109 dB\/mW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#111122;\"\u003e\n\u003ctd style=\"padding:8px 12px;\"\u003eImpedance\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;\"\u003e21 Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#0d0d1a;\"\u003e\n\u003ctd style=\"padding:8px 12px;\"\u003eFrequency Response\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;\"\u003e20 Hz – 20 kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#111122;\"\u003e\n\u003ctd style=\"padding:8px 12px;\"\u003eCable\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;\"\u003e4-Core 392-Strand 5N OFC Silver-Plated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#0d0d1a;\"\u003e\n\u003ctd style=\"padding:8px 12px;\"\u003eConnector\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;\"\u003e2-Pin 0.78mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#111122;\"\u003e\n\u003ctd style=\"padding:8px 12px;\"\u003eAudio Jack\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;\"\u003e3.5mm Gold-Plated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#0d0d1a;\"\u003e\n\u003ctd style=\"padding:8px 12px;\"\u003eHousing\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;\"\u003e6063 CNC Aluminum Alloy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#111122;\"\u003e\n\u003ctd style=\"padding:8px 12px;\"\u003eWeight (per earbud)\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;\"\u003e7g ± 0.5g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#0d0d1a;\"\u003e\n\u003ctd style=\"padding:8px 12px;\"\u003eWeight (incl. cable)\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;\"\u003e38g ± 1g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#111122;\"\u003e\n\u003ctd style=\"padding:8px 12px;\"\u003ePackage Includes\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;\"\u003eIEM · Detachable Cable · Eartips Set · Carrying Bag · Manual\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003chr style=\"border:none;border-top:1px solid #00e5ff44;margin:16px 0;\"\u003e\u003cdiv class=\"detailmodule_image\"\u003e\n\u003cimg class=\"detail-desc-decorate-image\" style=\"width:100%;margin-bottom:10px;\" src=\"https:\/\/ae01.alicdn.com\/kf\/S86ca8e08ba984204958cb86ecf7dbc318.jpg\"\u003e\u003cimg class=\"detail-desc-decorate-image\" style=\"width:100%;margin-bottom:10px;\" src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/S8f37eac43128419698600b10f0dcd774D.jpg\"\u003e\u003cimg class=\"detail-desc-decorate-image\" style=\"width:100%;margin-bottom:10px;\" src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/Sbf71b37163254cb885412f39e8ebc828T.jpg\"\u003e\u003cimg 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src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/S52a8624c332141c9a9907ef93d481f63a.jpg\"\u003e\u003cimg class=\"detail-desc-decorate-image\" style=\"width:100%;margin-bottom:10px;\" src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/S9cd9f8481f38454b8d8ebf1d4e287df0p.jpg\"\u003e\u003cimg class=\"detail-desc-decorate-image\" style=\"width:100%;margin-bottom:10px;\" src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/S56fd1b4a4d33481ab56c9b46019cd953n.jpg\"\u003e\u003cimg class=\"detail-desc-decorate-image\" style=\"width:100%;margin-bottom:10px;\" src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/S79de3ad4d45244f39ae31c1be984302ab.jpg\"\u003e\u003cimg class=\"detail-desc-decorate-image\" style=\"width:100%;margin-bottom:10px;\" src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/Sbc799f4b269b4010a1fc145b233904472.jpg\"\u003e\u003cimg class=\"detail-desc-decorate-image\" style=\"width:100%;margin-bottom:10px;\" src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/Sa2ddda65cd064e04b63016cf7b5e42091.jpg\"\u003e\u003cimg class=\"detail-desc-decorate-image\" style=\"width:100%;margin-bottom:10px;\" src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/S22a15772b1034000be7521140d182b96g.jpg\"\u003e\u003cimg class=\"detail-desc-decorate-image\" style=\"width:100%;margin-bottom:10px;\" src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/S5d481c7ef78f412d8c7e4d0a1728c4e9r.jpg\"\u003e\u003cimg class=\"detail-desc-decorate-image\" style=\"width:100%;margin-bottom:10px;\" src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/Se06676e978a24881b422b527941ad835t.jpg\"\u003e\u003cimg class=\"detail-desc-decorate-image\" style=\"width:100%;margin-bottom:10px;\" src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/S7e1cebc610b14cf0a3b7a0678c85768d5.jpg\"\u003e\u003cimg class=\"detail-desc-decorate-image\" style=\"width:100%;margin-bottom:10px;\" src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/S97fc77a8fe974f4f87e0c60b1ef4bc62c.jpg\"\u003e\u003cimg class=\"detail-desc-decorate-image\" style=\"width:100%;margin-bottom:10px;\" src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/Sd733ee660ac544609b4e5ae2ee93f3419.jpg\"\u003e\u003cimg class=\"detail-desc-decorate-image\" style=\"width:100%;margin-bottom:10px;\" src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/S6b9e6ed370f5435abcd021ebd26fdd6eu.jpg\"\u003e\u003cimg class=\"detail-desc-decorate-image\" style=\"width:100%;margin-bottom:10px;\" src=\"https:\/\/ae01.alicdn.com\/kf\/S6751aff3365c4113bdd63abe9e7c1bc7Y.jpg\"\u003e\u003cimg class=\"detail-desc-decorate-image\" style=\"width:100%;margin-bottom:10px;\" src=\"https:\/\/ae01.alicdn.com\/kf\/Sbedabbebf4224cff984e2533124a498eC.jpg\"\u003e\n\u003c\/div\u003e\u003cp style=\"text-align:center;margin-top:20px;color:#00e5ff;font-size:14px;letter-spacing:2px;text-shadow:0 0 6px #00e5ff;\"\u003e◈ OPEN BACK. OPEN MIND. PURE SOUND. ◈\u003c\/p\u003e","brand":"Levesphere","offers":[{"title":"Black \/ China Mainland","offer_id":43423364218928,"sku":"1005010215640125-Black-China Mainland","price":121.99,"currency_code":"USD","in_stock":true},{"title":"IM4-DS3-Silver \/ China Mainland","offer_id":43423364251696,"sku":"1005010215640125-IM4-DS3-Silver-China Mainland","price":225.99,"currency_code":"USD","in_stock":true},{"title":"silver \/ China Mainland","offer_id":43423364284464,"sku":"1005010215640125-silver-China Mainland","price":121.99,"currency_code":"USD","in_stock":true},{"title":"IM4-DS3-Black \/ China Mainland","offer_id":43423364317232,"sku":"1005010215640125-IM4-DS3-Black-China Mainland","price":225.99,"currency_code":"USD","in_stock":true},{"title":"IM4-4.4MM-DS3-black \/ China Mainland","offer_id":43423364350000,"sku":"1005010215640125-IM4-4.4MM-DS3-black-China Mainland","price":248.99,"currency_code":"USD","in_stock":true},{"title":"IM4-Silver-MIC \/ China Mainland","offer_id":43423364382768,"sku":"1005010215640125-IM4-Silver-MIC-China Mainland","price":139.99,"currency_code":"USD","in_stock":true},{"title":"IM4-Black-MIC \/ China Mainland","offer_id":43423364415536,"sku":"1005010215640125-IM4-Black-MIC-China Mainland","price":139.99,"currency_code":"USD","in_stock":true},{"title":"IM4-4.4MM-silver \/ China Mainland","offer_id":43423364448304,"sku":"1005010215640125-IM4-4.4MM-silver-China Mainland","price":133.99,"currency_code":"USD","in_stock":true},{"title":"IM4-4.4MM-black \/ China Mainland","offer_id":43423364481072,"sku":"1005010215640125-IM4-4.4MM-black-China Mainland","price":133.99,"currency_code":"USD","in_stock":true},{"title":"IM4-4.4MM-DS3-Silver \/ China Mainland","offer_id":43423364513840,"sku":"1005010215640125-IM4-4.4MM-DS3-Silver-China Mainland","price":248.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0579\/0597\/1248\/files\/S1aad597d6e294e5b98f0fdb8989b0ddfE.webp?v=1784589796","url":"https:\/\/levesphere.com\/ar\/products\/fosi-audio-im4-hifi-wired-earphones-open-back-dynamic-drivers-iem-headphones-for-music-monitoring-gaming-earbuds","provider":"Levesphere","version":"1.0","type":"link"}