{"type":"firestarter.listing","listing":{"id":"lst_wOVgk04M","product_name":"Moondrop Horizon","category":"Headphones","description":"\n\n  \n    A New Benchmark in Over-Ear Hi-Fi\n    Moondrop Horizon introduces a groundbreaking standard in dynamic driver over-ear headphones, built for the modern audiophile. With a completely reengineered 50mm ULT driver and optimized acoustic architecture, it delivers high sensitivity, ultra-low distortion, and deep sub-bass extension—all in a lightweight and elegant design.\n  \n\n  \n    Advanced 50mm ULT Dynamic Driver\n    After two years of development, the Horizon debuts Moondrop’s newly designed ULT (Ultra-Linear Technology) dynamic driver. With enhanced dynamic range and extended frequency response, this driver pushes the limits of what dynamic headphones can achieve.\n  \n\n  \n    FEA-Optimized Composite Magnet Circuit\n    Utilizing a dual N55 NdFeB magnet array and Comsol-based finite element simulation, the Horizon reaches a peak magnetic flux density of 1.85T. This allows for significantly improved efficiency, lower distortion, and precise linearity across the frequency band.\n  \n\n  \n    Titanium-Plated Composite Diaphragm\n    The diaphragm features a titanium-plated PEN dome with a dual-layer liquid silica gel suspension. This innovative material blend provides ideal rigidity, damping, and stroke length, enabling accurate transients and powerful, natural bass.\n  \n\n  \n    Angled Driver for Natural Soundstage\n    The Horizon’s angled driver placement ensures auricle coupling with high transmission efficiency. By projecting sound from the front oblique position, it creates a broader and more immersive soundstage while maintaining tonal accuracy.\n  \n\n  \n    Smooth Tri-Frequency Balance\n    With adherence to Moondrop’s VDSF target and a free-field f₀ of 80Hz, Horizon produces impactful sub-bass, rich mids, and silky highs. Its natural timbre and wide soundstage suit both analytical listening and relaxed enjoyment.\n  \n\n  \n    Ultra-Low Distortion Design\n    Thanks to precision driver engineering and high-grade diaphragm materials, Horizon achieves exceptional detail r","images":["https://cdn.shopify.com/s/files/1/0040/7201/3924/files/PHI_4593-_-NR.jpg?v=1752138020","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/PHI_4587-_-NR.jpg?v=1752137948","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/PHI_4589-_-NR.jpg?v=1752138001","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/PHI_4849-_-NR.jpg?v=1752138051","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/PHI_4860-_-NR.jpg?v=1752138870"],"price":199.99,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-20T16:26:44.858Z"},"share_url":"https://firestarter.network/l/lst_wOVgk04M","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_wOVgk04M' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Moondrop Horizon' and a budget_max comfortably above $199.99 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."]}}