{"type":"firestarter.listing","listing":{"id":"lst_8ojWL6eE","product_name":"Moondrop Old Fashioned 40mm On-Ear Open-Back Headphone","category":"Headphone","description":"The Moondrop Old Fashioned 40mm On-Ear Headphone is a lightweight open-back headphone designed for listeners who enjoy natural sound, clear detail, and a comfortable on-ear listening experience. Built with a 40mm dynamic driver, it delivers smooth sound performance with balanced vocals, clean instruments, and a spacious open-back presentation.The open-back design helps create a more natural and airy listening experience, making it suitable for music listening, desktop audio, and casual HiFi use. Its compact on-ear structure is easy to wear and convenient for everyday listening.With a 0.78mm 2-pin detachable cable and 3.5mm plug, the headphone can easily connect to phones, laptops, DACs, audio players, and headphone amplifiers. This item is in open box condition.Key Features:\nMoondrop Old Fashioned on-ear headphone\n40mm dynamic driver\nOpen-back headphone design\nNatural and spacious sound presentation\n0.78mm 2-pin detachable cable\n3.5mm headphone jack\nLightweight and comfortable on-ear fit\nGreat for music, desktop audio, and casual HiFi listening\n","images":["https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-addsoap-headphone-moondrop-old-fashioned-40mm-on-ear-open-back-headphone-1241158440.jpg?v=1780384930","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-addsoap-headphone-moondrop-old-fashioned-40mm-on-ear-open-back-headphone-1241158439.jpg?v=1780384869","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-addsoap-headphone-moondrop-old-fashioned-40mm-on-ear-open-back-headphone-1241158441.jpg?v=1780384808"],"price":21.24,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-20T16:25:55.283Z"},"share_url":"https://firestarter.network/l/lst_8ojWL6eE","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_8ojWL6eE' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Moondrop Old Fashioned 40mm On-Ear Open-Back Headphone' and a budget_max comfortably above $21.24 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."]}}