{"type":"firestarter.listing","listing":{"id":"lst_ZxeJ4Wnr","product_name":"HiBy Yvain","category":"Earphones/IEMs","description":"\n\n4 Drivers of Exceptional Acoustic Configuration in Each Side\nHIBY YVAIN sets a new standard in audio performance with four finely tuned drivers on each side. Global outstanding balanced armatures are meticulously integrated to deliver a high-level sound detail across the full-range frequency spectrum.\n\n\nCustom-Class Full-Range Dual-Driver by Sonion\nThe custom-class full-range dual-driver by Sonion combines high-performance balanced armatures with ultra-high resolution. Every vocal and the subtle nuances of string instruments are faithfully reproduced, capturing the deep emotions of the singers. This level of tone reproduction exceeds the tightness of general balanced armatures.\n\n\nNon-Damper Efficient Bass by Knowles\nKnowles, the largest and most powerful receiver manufacturer, presents the non-damper efficient bass. This design, featuring a non-damper, provides high acoustic power for deep bass with a musical and pure sound.\n\n\nClassic 3-Way Electronic Crossover\nHIBY YVAIN inherits the classic 3-way electronic crossover and seamlessly combines it into one cohesive system. This precision crossover tuning ensures smooth and natural transitions while preserving all the intricate details of your music.\n\n\nChannel Isolated Acoustic Chamber\nTo eliminate mutual interference and maintain pure sound, HIBY YVAIN incorporates channel-isolated acoustic chambers for every element, from tweeter to vocal to woofer.\n\n\nHigh-Precision Aluminum Alloy CNC Processing\nThe use of high-precision aluminum alloy CNC processing not only makes the earphones lightweight but also enhances the pure acoustic feedback from the chamber.\n\n\nUITZ Type 4 Coaxial PCOCC Balance Cable\nThe PCOCC cable with Litz Type 4 coaxial balance design minimizes internal resistance, distortion, and interference. This guarantees that every ounce of musical emotion and every nanosecond of change is faithfully transmitted from the amplifier to the earphones.\n\n\n4-Pin Lock Multi-Function Plug with Firm Lock Design\nHIBY YVAI","images":["https://cdn.shopify.com/s/files/1/0040/7201/3924/files/1000x1000-4.jpg?v=1699249369","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/1000x1000-2.jpg?v=1699249369","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/1000x1000-5.jpg?v=1699249369","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/1000x1000-6.jpg?v=1699249369","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/1000x1000.jpg?v=1699249369","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/1000x1000-3.jpg?v=1699249369"],"price":239,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-20T16:26:46.503Z"},"share_url":"https://firestarter.network/l/lst_ZxeJ4Wnr","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_ZxeJ4Wnr' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy HiBy Yvain' and a budget_max comfortably above $239.00 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."]}}