{"type":"firestarter.listing","listing":{"id":"lst_DPTRXR-0","product_name":"Moondrop Old Fashioned 40mm Large Dynamic Driver Open-Back Headphone","category":null,"description":"Features:-\n\n>40mm Large-Dynamic Driver On-Ear Headphones.\n\n>Classic Retro-Style On-Ear Headphones.\n\n>Open-Back Architecture.\n\n>Ergonomic Fit with Adaptive Comfortable Telescopic Headband.\n\n>Multi-Axis Swivel Hinges.\n\n>0.78mm 2-Pin Connector Interchangeable Cable Design.\n\n>Modular Detachable Design(The ear cups and headband are detachable).\n\n>Tuned Following DF-HRTF Frequency Curve.\n\nTechnical Information:-\n\n>Impedance: 32Ω±15%.\n\n>Frequency Response: 20Hz~32kHz.\n\n>Effective Frequency Response: 20Hz~20kHz.\n\n>Sensitivity: 109dB/Vrms.\n\n>THD: ≤0.2%.\n\nTermination Plug: 3.5mm.\n\nMoondrop takes you back to the nostalgic era of on-ear headphones with its latest release, the Moondrop Old-Fashioned. It’s a classic retro-style on-ear headphone with a 40mm large dynamic driver unit. The pair features an open-back architecture that delivers high-quality sound on the go. With a telescopic headband and multi-axis swiveling hinges, the Old-Fashioned offer a perfect fit. Moondrop Old-Fashioned headphones have an innovative modular design with detachable ear cups and headband that allow the users to try out variety of customized wearing methods to meet individual preferences. Along with its retro design, Moondrop Old-Fashioned features modern sound tuning based on DF-HRTF tuning curve, ensuring a clean and natural sound quality for the listeners. We are pretty excited about the amazing Moondrop Old-Fashioned!! Grab yours today!!\n\nClassic Retro Design:-\n\nForged from a legacy spanning nearly five decades, the Old-Fashioned revives the open-back, on-ear aesthetic of the cassette era. Moondrop has refined this classic look with a neat open-back cavity that not only looks stylish but provides an open, airy sound feel. It delivers a modern resolution without sacrificing that signature warm, fatigue-free tonality of the past. \n\nPowerful Sound with a 40mm Large Dynamic Driver:-\n\nAt the heart of the headphones lies a large 40mm dynamic driver, engineered w","images":["https://cdn.shopify.com/s/files/1/0031/0453/8673/files/moondrop-old-fashioned-40mm-large-dynamic-driver-open-back-headphone-moondrop-old-fashioned-35mm-no-mic-574953.jpg?v=1764322057","https://cdn.shopify.com/s/files/1/0031/0453/8673/files/moondrop-old-fashioned-40mm-large-dynamic-driver-open-back-headphone-moondrop-175270.jpg?v=1764322072","https://cdn.shopify.com/s/files/1/0031/0453/8673/files/moondrop-old-fashioned-40mm-large-dynamic-driver-open-back-headphone-moondrop-607340.jpg?v=1764322086","https://cdn.shopify.com/s/files/1/0031/0453/8673/files/moondrop-old-fashioned-40mm-large-dynamic-driver-open-back-headphone-moondrop-229510.jpg?v=1764322088","https://cdn.shopify.com/s/files/1/0031/0453/8673/files/moondrop-old-fashioned-40mm-large-dynamic-driver-open-back-headphone-moondrop-44mm-cable-only-808737.jpg?v=1767785583","https://cdn.shopify.com/s/files/1/0031/0453/8673/files/moondrop-old-fashioned-40mm-large-dynamic-driver-open-back-headphone-moondrop-395407.jpg?v=1767785581","https://cdn.shopify.com/s/files/1/0031/0453/8673/files/moondrop-old-fashioned-40mm-large-dynamic-driver-open-back-headphone-moondrop-891715.jpg?v=1774435650","https://cdn.shopify.com/s/files/1/0031/0453/8673/files/moondrop-old-fashioned-40mm-large-dynamic-driver-open-back-headphone-moondrop-109899.jpg?v=1774435653","https://cdn.shopify.com/s/files/1/0031/0453/8673/files/moondrop-old-fashioned-40mm-large-dynamic-driver-open-back-headphone-moondrop-191593.jpg?v=1774435655","https://cdn.shopify.com/s/files/1/0031/0453/8673/files/moondrop-old-fashioned-40mm-large-dynamic-driver-open-back-headphone-moondrop-078-pin-usb-c-cable-785684.jpg?v=1774435648"],"price":24.99,"currency":"USD","in_stock":true,"inventory_qty":49995,"dynamic_pricing":false,"listed_at":"2026-06-20T16:26:28.612Z"},"share_url":"https://firestarter.network/l/lst_DPTRXR-0","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 ","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_DPTRXR-0' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Moondrop Old Fashioned 40mm Large Dynamic Driver Open-Back Headphone' and a budget_max comfortably above $24.99 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."]}}