{"type":"firestarter.listing","listing":{"id":"lst_9dsSkKVo","product_name":"Pre Order DUNU Mortise 50mm Dynamic Driver Open-Back Headphones","category":null,"description":"Features:-\n>Open-Back Dynamic Driver Headphones.\n>Ultra-Thin Carbon Fiber Diaphragm Dynamic Driver Unit.\n>Independent Flexible Surround.\n>High-Flux Magnetic Circuit with N52 Neodymium Magnets.\n>Exquisite North American Black Walnut Wooden Earcups.\n>Warm, Rich, Full-Bodied Sound Signature.\n>Ergonomic, Comfortable Design.\n>High-Purity Single-Crystal Copper Stock Cable.\n>Q-Lock Mini Interchangeable Termination Plug.\nTechnical Information:-\n>Impedance: 38Ω.\n>Sensitivity: 98dB/mW, 113dB/Vrms.\n>Frequency Response Range: 5Hz~40kHz.\n>Connectors(Headphone Side): 3.5mm.\n>Termination Plug: 3.5mm+4.4mm Swappable System.\nDUNU has released a brand new pair of full-sized over-ear headphones, the DUNU Mortise. It’s a beautifully crafted headphone built with North American Black Walnut wood for the ear cups. The headphone has an open-back architecture and houses a 50mm full-range dynamic driver with ultra-thin carbon fiber diaphragm. DUNU has also employed a flexible suspension surround along with a high-flux magnetic circuit featuring strong N52 neodymium magnets. Enjoy a seamless high-fidelity sound response with a smooth, warm, and full-bodied presentation on the DUNU Mortise!!\nA Brand-New 50mm Dynamic Driver Unit:-\nDUNU Mortise houses a custom-developed 50mm full-frequency dynamic driver featuring an ultra-thin carbon fiber diaphragm and a flexible surround suspension. This particular combination helps the headphone achieve lightning-fast transients with deeply-extended, textured bass response, and amazing clarity across the frequency band. With the open-back design, the pair promises a big, open soundstage feel for the listeners.\nTimeless Design With Natural Black Walnut Wood Housings:-\nDUNU has crafted the Mortise ear cups using carefully selected North American black walnut wood material. Each unit undergoes precise machining and stabilization treatment to ensure both structural integrity and acoustic consistency. The natural wood mat","images":["https://cdn.shopify.com/s/files/1/0031/0453/8673/files/pre-order-dunu-mortise-50mm-dynamic-driver-open-back-headphones-dunu-580368.jpg?v=1773915305","https://cdn.shopify.com/s/files/1/0031/0453/8673/files/pre-order-dunu-mortise-50mm-dynamic-driver-open-back-headphones-dunu-mortise-716048.jpg?v=1773915298","https://cdn.shopify.com/s/files/1/0031/0453/8673/files/pre-order-dunu-mortise-50mm-dynamic-driver-open-back-headphones-dunu-114327.jpg?v=1773999559","https://cdn.shopify.com/s/files/1/0031/0453/8673/files/pre-order-dunu-mortise-50mm-dynamic-driver-open-back-headphones-dunu-320386.jpg?v=1773999565","https://cdn.shopify.com/s/files/1/0031/0453/8673/files/pre-order-dunu-mortise-50mm-dynamic-driver-open-back-headphones-dunu-673067.jpg?v=1773999569","https://cdn.shopify.com/s/files/1/0031/0453/8673/files/pre-order-dunu-mortise-50mm-dynamic-driver-open-back-headphones-dunu-506407.jpg?v=1773999566","https://cdn.shopify.com/s/files/1/0031/0453/8673/files/pre-order-dunu-mortise-50mm-dynamic-driver-open-back-headphones-dunu-703496.jpg?v=1773999557","https://cdn.shopify.com/s/files/1/0031/0453/8673/files/pre-order-dunu-mortise-50mm-dynamic-driver-open-back-headphones-dunu-208769.jpg?v=1773999571","https://cdn.shopify.com/s/files/1/0031/0453/8673/files/pre-order-dunu-mortise-50mm-dynamic-driver-open-back-headphones-dunu-272763.jpg?v=1773999562"],"price":429.99,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-20T16:26:28.508Z"},"share_url":"https://firestarter.network/l/lst_9dsSkKVo","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_9dsSkKVo' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Pre Order DUNU Mortise 50mm Dynamic Driver Open-Back Headphones' and a budget_max comfortably above $429.99 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."]}}