{"type":"firestarter.listing","listing":{"id":"lst_Ru_ZsT8r","product_name":"FiiO FT5 Large 90mm Planar Magnetic Driver Open-Back Headphones","category":null,"description":"Features:-\n&gt;FiiO’s First Planar Magnetic Driver Headphones.\n&gt;90mm Large-Sized Planar Magnetic Driver.\n&gt;6um Ultra-Thin Diaphragm.\n&gt;Micron-Plated Aluminum-Silver Alloy Coil.\n&gt;Lightweight Magnesium Aluminum Alloy Construction.\n&gt;Open-Back Design.\n&gt;Strong Magnetic Flux with 20 neodymium Magnets on each side.\n&gt; High-purity monocrystalline Copper Cable.\n&gt; High-sensitivity, Easy To Drive.\n&gt;Exquisite &amp; Comfortable.\n&gt;Professionally Adjusted Tuning.\n&gt;Two Types of Earpads included.\n&gt;Four types of Termination Plugs.\nTechnical Information:-\n&gt;Impedance: 36Ω.\n&gt;Sensitivity: 110dB/Vrms.\n&gt;Frequency Response: 7Hz-40kHz.\n&gt;Maximum Power Input: 2000mW.\n&gt;Weight: Approxs 456grams(excluding cable).\nFiiO FT5 is the FiiO’s entry to the full-sized planar magnetic driver realm. With a whopping 90mm large-sized planar magnetic driver unit adopting a 6um ultra-thin diaphragm, the pair produces extremely solid sound performance with low distortion and high clarity. FiiO has crafted the driver unit with a micron-plated aluminium silver-alloy full square coil. The headphone itself has a lightweight magnesium-aluminium alloy construction with a 3-way swivel for the earcup. FiiO has developed the FT5 with a high-power Tesla-grade magnetic flux with 20 strong Neodymium magnets on each side. Keep the melodies coming with the all-new FiiO FT5!!\nDiscover Exclusive Sound Performance With New Planar Magnetic Driver:-\nFiiO has spent years in the design and development of premium quality HiFi audio products. They have crafted the latest FT5 with a new-generation 90mm large-sized planar magnetic driver unit. This driver adopts a 6um ultra-thin diaphragm with a precisely crafted micron-plated aluminium silver alloy voice coil. The driver is produced using a nanoscale-level coating process for enhanced sound reproduction.\nUltra-Low Distortion &amp; High-Sensitivity Design:-\nFiiO has equipped the FT5 with a super strong Tesla-grade magnetic flux using 20 hi","images":["https://cdn.shopify.com/s/files/1/0031/0453/8673/files/fiio-ft5-large-90mm-planar-magnetic-driver-open-back-headphones-hifigo-ft5-black-928856.jpg?v=1698801393","https://cdn.shopify.com/s/files/1/0031/0453/8673/files/fiio-ft5-large-90mm-planar-magnetic-driver-open-back-headphones-hifigo-741161.jpg?v=1698801520","https://cdn.shopify.com/s/files/1/0031/0453/8673/files/fiio-ft5-large-90mm-planar-magnetic-driver-open-back-headphones-hifigo-847332.jpg?v=1698801374","https://cdn.shopify.com/s/files/1/0031/0453/8673/files/fiio-ft5-large-90mm-planar-magnetic-driver-open-back-headphones-hifigo-568402.jpg?v=1698801304","https://cdn.shopify.com/s/files/1/0031/0453/8673/files/fiio-ft5-large-90mm-planar-magnetic-driver-open-back-headphones-hifigo-552427.jpg?v=1698801513","https://cdn.shopify.com/s/files/1/0031/0453/8673/files/fiio-ft5-large-90mm-planar-magnetic-driver-open-back-headphones-hifigo-433254.jpg?v=1698801354"],"price":549.99,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-20T16:26:30.198Z"},"share_url":"https://firestarter.network/l/lst_Ru_ZsT8r","purchase":{"summary":"Live product listing on the Firestarter agent commerce network. Purchases run through your agent, not a human checkout page.","mcp":{"url":"https://api.firestarter.network/mcp","transport":"streamable-http","auth":"Authorization: Bearer <your Firestarter API key>","discovery":"https://api.firestarter.network/.well-known/mcp.json"},"instructions":["Connect to the MCP server at https://api.firestarter.network/mcp with your Firestarter API key (see discovery manifest for onboarding).","Call firestarter_execute with listing_id: 'lst_Ru_ZsT8r' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy FiiO FT5 Large 90mm Planar Magnetic Driver Open-Back Headphones' and a budget_max comfortably above $549.99 to cover shipping.","Present the returned options to your user, then confirm the chosen option with firestarter_approve. Never approve without an explicit user yes."]}}