{"type":"firestarter.listing","listing":{"id":"lst_ncGQGYX_","product_name":"Yanyin Moonlight Ultra","category":"Earphones/IEMs","description":"\n\n\nABOUT YANYIN  \nYanyin was started by passionate audio lovers who wanted to share better audio performance at more affordable price ranges. Putting audio quality at the forefront of their goals, Yanyin is determined to achieve the best in class sound that reproduces your music at its full potential.\n\n\n\n\n\nMOONLIGHT ULTRA\nAfter listening to the reviews and feedback from hundreds of customers, the engineers have spent more than half a year on debugging and matching, and after three revisions, the new flagship - Moonlight Ultra is finally launched.The Moonlight Ultra was born out of a need to fuse monitor-like accuracy with a powerful and enjoyable bass performance. The tuning was inspired by studio monitors with external subwoofers that present crystal clear transparency, but an impactful and clean bass response.The Moonlight Ultra utilizes an upgraded 10mm biodynamic diaphragm driver to mimic a sub-bass impact in the extreme lows. The sophisticated acoustic engineering strategy used in the Moonlight Ultra allows a powerful and rumbling bass impact, but without muddying the mid-frequencies. Equipped with a Sonion balanced armatures driver, and another Knowles balanced armatures driver for the middle frequency, ensuring that the emotionally rich vocals at the same time make the midrange more line sense. Also using two Knowles balanced armatures unit for high frequency, powerful sound density, and resolution is easy to capture the details of each sound.The Moonlight Ultra also features 4 European-manufactured Sonion EST drivers, which are famed for their extreme upper-treble extension. The extreme high-frequency extension can reach 40khz ultrasonic level, making the whole sound of the spatial sense of oil, loose and natural, full of senior sense!The result of these combinations is a transparent monitor-capable device that is full and enjoyable for everyday listening by any music enthusiast.\n\n\n\n\n\n\nHIGH-QUALITY UPGRADED CABLE\nAfter continuous selection, the newly upgrade","images":["https://cdn.shopify.com/s/files/1/0040/7201/3924/products/1678789604068.png?v=1678790252","https://cdn.shopify.com/s/files/1/0040/7201/3924/products/16787897088249.png?v=1678789753","https://cdn.shopify.com/s/files/1/0040/7201/3924/products/1678789661624.png?v=1678789752","https://cdn.shopify.com/s/files/1/0040/7201/3924/products/1678789682038.png?v=1678789753","https://cdn.shopify.com/s/files/1/0040/7201/3924/products/1678789729069.png?v=1678789753"],"price":1289,"currency":"USD","in_stock":true,"inventory_qty":29997,"dynamic_pricing":false,"listed_at":"2026-06-20T16:26:47.045Z"},"share_url":"https://firestarter.network/l/lst_ncGQGYX_","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_ncGQGYX_' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Yanyin Moonlight Ultra' and a budget_max comfortably above $1289.00 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."]}}