{"type":"firestarter.listing","listing":{"id":"lst_3u7rWBB4","product_name":"FiiO JT3 50mm Dynamic Driver Over-Ear Headphones","category":null,"description":"\n\n\n\nFeatures:-\n&gt;High-Fidelity Over-Ear Headphones\n&gt;50mm High-Performance Dynamic Driver\n&gt;PEK+PU Suspension Composite Diaphragm\n&gt;Imported TIL CCAW Large Black Wire Voice Coil\n&gt;Open-Back Design\n&gt;Side-Mounted Driver\n&gt;Detachable Velvet Material Ear Cups\n&gt;Aluminium-Magnesium Alloy Open-Back Grill\n&gt;Dual 3.5mm to 3.5mm cable with Key-Controlled Microphone\n&gt;4N Oxygen-Free Copper Palladium-Plated Cable\n&gt;Stainless Steel+Zinc Alloy Material Headband\n&gt;Lightweight and Comfortable\nTechnical Information:-\n&gt;Impedance: 80Ω@1kHz\n&gt;Sensitivity: 110dB/Vrms\n&gt;Frequency Response Range: 10Hz~35kHz\n&gt;Connector Type: Dual 3.5 mm\n&gt;Termination Plug: 3.5mm\n&gt;Weight: Approx. 330 grams\nExperience an expansive and dynamic sound with the all-new FiiO JT3 over-ear headphones. Equipped with a premium-quality 50mm dynamic driver featuring a PEK+PU composite polymer diaphragm, the JT3 promises lifelike details, natural vocals, punchy bass response, and detailed high-frequencies. Additionally, the pair adopts imported TIL CCAW large black wire voice coil that ensures impressive efficiency enabling the pair to produce minute details with great ease. FiiO JT3 has an open-back design, it is crafted for long listening comfort with a durable yet lightweight aluminium-magnesium grille and soft velvet ear pads. FiiO JT3 promises nothing but quality sound at an affordable price!!\nMassive 50mm Dynamic Driver Unit:-\nFiiO has equipped the JT3 headphones with a massive 50mm dynamic driver unit. This driver is specially crafted featuring PEK+PU composite polymer material diaphragm that combines the solid, robust PEK material with the flexibility of PU suspension edges. This advanced driver construction ensures top-tier sound reproduction. It produces a strong, sensational bass response, superb midrange clarity, extended high-frequencies, and a wide, open soundstage.\nLightweight and Powerful Imported Japanese Voice Coil:-\nFiiO JT3 adopts an imported Japanese lightwei","images":["https://cdn.shopify.com/s/files/1/0031/0453/8673/files/fiio-jt3-50mm-dynamic-driver-over-ear-headphones-fiio-500942.webp?v=1761035957","https://cdn.shopify.com/s/files/1/0031/0453/8673/files/fiio-jt3-50mm-dynamic-driver-over-ear-headphones-fiio-jt3-black-645097.webp?v=1761035961","https://cdn.shopify.com/s/files/1/0031/0453/8673/files/fiio-jt3-50mm-dynamic-driver-over-ear-headphones-fiio-672195.webp?v=1761035953","https://cdn.shopify.com/s/files/1/0031/0453/8673/files/fiio-jt3-50mm-dynamic-driver-over-ear-headphones-fiio-370808.webp?v=1761035951","https://cdn.shopify.com/s/files/1/0031/0453/8673/files/fiio-jt3-50mm-dynamic-driver-over-ear-headphones-fiio-157246.webp?v=1761035955","https://cdn.shopify.com/s/files/1/0031/0453/8673/files/fiio-jt3-50mm-dynamic-driver-over-ear-headphones-fiio-jt3-silver-480909.webp?v=1761035958"],"price":69.99,"currency":"USD","in_stock":true,"inventory_qty":19998,"dynamic_pricing":false,"listed_at":"2026-06-20T16:26:28.692Z"},"share_url":"https://firestarter.network/l/lst_3u7rWBB4","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_3u7rWBB4' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy FiiO JT3 50mm Dynamic Driver Over-Ear Headphones' and a budget_max comfortably above $69.99 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."]}}