{"product_id":"used-open-box-fiio-fd15-iem","title":"Used \/ Open-Box FiiO FD15 IEM","description":"\u003csection\u003e\n\u003ch2\u003eProduct overview\u003c\/h2\u003e\n\u003cp\u003eThe FiiO FD15 is an IEM for compact in-ear listening with portable audio gear. HiFiLoop uses this page as a focused model page for used \/ open-box private-quote requests.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2\u003eKey features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSingle dynamic-driver in-ear monitor tuned around a large 13.8mm driver platform.\u003c\/li\u003e\n\u003cli\u003eMagnalium diaphragm and DLC gasket driver structure support the FD15's dynamic-driver design.\u003c\/li\u003e\n\u003cli\u003eW-shaped gasket and 1.5T external magnet structure help improve effective diaphragm area and driver control.\u003c\/li\u003e\n\u003cli\u003eFrontal acoustic prism and Tesla Valve bass-enhancement acoustic design support phase and bass tuning.\u003c\/li\u003e\n\u003cli\u003e316L stainless-steel shell and curved MMCX connectors support durability and wearing comfort.\u003c\/li\u003e\n\u003cli\u003eIncluded Furukawa monocrystalline copper plus silver-plated copper cable uses 3.5mm \/ 4.4mm swappable plugs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2\u003eKey specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct type\u003c\/th\u003e\n\u003ctd\u003eSingle dynamic-driver IEM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDriver\u003c\/th\u003e\n\u003ctd\u003e13.8mm dynamic driver\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDiaphragm \/ gasket\u003c\/th\u003e\n\u003ctd\u003eMagnalium diaphragm with DLC gasket and W-shaped gasket design\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMagnetic structure\u003c\/th\u003e\n\u003ctd\u003eExternal magnet structure with up to 1.5T magnetic flux density\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAcoustic design\u003c\/th\u003e\n\u003ctd\u003eFrontal acoustic prism and Tesla Valve bass-enhancement acoustic structure\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShell\u003c\/th\u003e\n\u003ctd\u003e316L stainless-steel shell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eConnector\u003c\/th\u003e\n\u003ctd\u003eCurved MMCX connector\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCable\u003c\/th\u003e\n\u003ctd\u003eFurukawa monocrystalline copper plus Furukawa monocrystalline silver-plated copper braided cable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCable structure\u003c\/th\u003e\n\u003ctd\u003e4 strands, each with 100 copper wires and 20 silver-plated wires, totaling 480 wires\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePlugs \/ nozzles\u003c\/th\u003e\n\u003ctd\u003e3.5mm \/ 4.4mm swappable plugs and red \/ black swappable sound nozzles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2\u003eSeries \/ category notes\u003c\/h2\u003e\n\u003cp\u003eThe FD15 sits in the FiiO FD Series and fits the Dynamic driver IEMs category, making it relevant for buyers comparing IEM options in similar listening setups.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2\u003eCondition \u0026amp; availability\u003c\/h2\u003e\n\u003cp\u003eReference page only. Manual availability check required.\u003c\/p\u003e\n\u003cp\u003eThis is a used \/ open-box reference listing.\u003c\/p\u003e\n\u003cp\u003eFinal pricing, condition, accessories, and availability are confirmed case by case.\u003c\/p\u003e\n\u003cp\u003eReference price is for price context only. Availability and final quote are confirmed manually before payment. New or like-new options can be checked on request.\u003c\/p\u003e\n\u003cp\u003eFor this IEM set, HiFiLoop checks functional status, cosmetic condition, included accessories, version details, photos, and known limitations before quoting. Where relevant, battery behavior, charging, controls, ports, and connectivity are reviewed for the specific unit being offered.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2\u003eShipping \u0026amp; support\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e3–5 business days processing after confirmation\u003c\/li\u003e\n\u003cli\u003e7–15 days typical international shipping\u003c\/li\u003e\n\u003cli\u003eFree shipping over $199\u003c\/li\u003e\n\u003cli\u003e14-day DOA support\u003c\/li\u003e\n\u003cli\u003eRepair path from day 15 to day 180\u003c\/li\u003e\n\u003cli\u003eBuyer may be responsible for return shipping, taxes, and duties\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2\u003eFAQ\u003c\/h2\u003e\n\u003ch3\u003eWhat does Reference price mean?\u003c\/h3\u003e\n\u003cp\u003eReference price is for price context only. It is a planning guide, not a final selling price. Final terms are confirmed with the exact unit.\u003c\/p\u003e\n\u003ch3\u003eIs this exact unit ready to ship?\u003c\/h3\u003e\n\u003cp\u003eManual availability check required. This page identifies the model, not a guaranteed ready-to-ship unit. Timing is confirmed during the quote process.\u003c\/p\u003e\n\u003ch3\u003eCan HiFiLoop help me find another unit?\u003c\/h3\u003e\n\u003cp\u003eYes. New or like-new options can be checked on request. Share your preferred condition, accessories, budget range, and region so HiFiLoop can look for another suitable used \/ open-box option.\u003c\/p\u003e\n\u003c\/section\u003e","brand":"FiiO","offers":[{"title":"Default Title","offer_id":48314331660502,"sku":null,"price":119.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0790\/7445\/9862\/files\/SKU__1_04bf95a2-273d-41cc-a1c5-4d1f80839306.jpg?v=1780384271","url":"https:\/\/www.hifiloop.com\/products\/used-open-box-fiio-fd15-iem","provider":"HiFiLoop","version":"1.0","type":"link"}