{"type":"firestarter.listing","listing":{"id":"lst_2gtZYFth","product_name":"HarmonicDyne Romantic","category":"Headphones","description":"                                          60mm Bamboo Fiber Driver &amp; Open-Back Earcup Design                The Romantic headphone features a self-developed high-stroke bamboo fiber driver—its natural damping keeps the diaphragm moving evenly, minimizing distortion and harsh \"ringing\". Paired with its open-back earcup structure, it widens the soundstage for a natural, live-like experience, enhancing instrument/vocal positioning. Its great stiffness-to-weight ratio enables lightning-fast response, and stays punchy without lag in big orchestral swells.                                                                                High-Efficiency Magnetic Circuit System                The Romantic is equipped with a high-efficiency, high-performance conversion magnetic circuit system—this system cuts energy loss for better electro-acoustic conversion. With 107dB SPL/mW sensitivity, the Romantic headphones perform brilliantly across all sources, from smartphones and laptops to high-end desktop amplifiers, unlocking full performance potential without demanding specialized gear.                                                                                Romanticism-Inspired Design Philosophy                Romanticism-Inspired Design Philosophy: The Romantic draws on 19th-century Romantic ideals, rejecting cold industrial aesthetics. Its earcups are shaped like natural mountain ridges, turning function into poetic expression. More than a sound device, it amplifies melody emotion—whether stormy passion or moonlit tranquility—celebrating the wildness and solitude of the human spirit.                                                                                Ergonomic Comfort for Extended Listening                 HarmonicDyne Romantic prioritizes wearing comfort with carefully designed earcups and an adjustable headband. The lightweight frame reduces head fatigue during long listening and gaming sessions. Protein leather earpads with \"soccer net\" fabric lining of","images":["https://cdn.shopify.com/s/files/1/0040/7201/3924/files/HarmonicDyneRomantic_8.png?v=1762853125","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/HarmonicDyneRomantic_6.png?v=1762853125","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/HarmonicDyneRomantic_12.jpg?v=1762853125","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/HarmonicDyneRomantic_9.png?v=1762853125","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/HarmonicDyneRomantic_1.jpg?v=1762853125","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/HarmonicDyneRomantic_2.png?v=1762853125","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/HarmonicDyneRomantic_1.png?v=1762853125"],"price":339,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-20T16:26:44.520Z"},"share_url":"https://firestarter.network/l/lst_2gtZYFth","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_2gtZYFth' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy HarmonicDyne Romantic' and a budget_max comfortably above $339.00 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."]}}