{"type":"firestarter.listing","listing":{"id":"lst_ybe_Cbpn","product_name":"HiBy Yvain Medium-End Three-way 4 BA Drivers Enclosed Reference In-Ear Earphones","category":null,"description":"Features:-\n>Refernce-Level Premium Multi-BA IEM.\n>Four High-Performance Balanced Armature Drivers.\n>Three-Way Frequency Crossover.\n>Knowles Non-Damper High-Performance Bass BA Driver.\n>Sonion Customized Dual Composite Full-Range BA Driver.\n>Knowles Hi-Res Tweeter BA.\n>Three-Way Independent Acoustic Chamber Design.\n>Medical-Grade 3D-Printed Ear Shells.\n>Finely Crafted Lion-Themed CNC Machined Face Covers.\n>Fully-Enclosed Isolated Design.\n>Ergonomic & Comfortable Shells.\n>High-purity OCC Copper Cable With Replaceable Plugs.\n>Fully-Balanced Litz Wire.\n>Two-Pin 0.78mm Connectors.\nTechnical Information:-\n>Impedance: 23Ω.\n>Frequency Response: 20Hz-40kHz.\n>Sensitivity: 116dB/mW.\n>THD: <1%.\n>Weight: 4.7 grams for each earpiece.\nHiBy Yvain is a brand new multi-BA driver IEM that houses a premium four-balanced armature driver arrangement. We have premium-quality balanced armature drivers from Sonion and Knowles, the two largest driver manufacturers in the industry. The drivers are arranged together in a three-way frequency crossover. HiBy has designed the Yvain taking inspiration from the classic 12th-century novel, Yvain, The Knight of the Lion. The symbolic Lion is engraved using a CNC machining process on high-quality aluminium alloy face covers. Get an enticing listening experience with the reference-grade sound performance of the HiBy Yvain!!\nThe Tale of The Knight Of The Lion:-\nHiBy has named the pair after a classic 12th-century novel “Yvain, the Knight of the Lion”, which describes the heroic tale of the medieval knight Yvain. He faced a dilemma between fulfilling his promise to his beloved and pursuing his personal mission. In his self-imposed exile, he rediscovered the meaning of the line, and the young lion he saved became his loyal companion on his adventures. The pair features the face of the Lion as the main design element engraved on the CNC-machined aluminium alloy face covers.\nQuad-Driver Multi-B","images":["https://cdn.shopify.com/s/files/1/0031/0453/8673/files/hiby-yvain-medium-end-three-way-4-ba-drivers-enclosed-reference-in-ear-earphones-hifigo-336140.jpg?v=1698801357","https://cdn.shopify.com/s/files/1/0031/0453/8673/files/hiby-yvain-medium-end-three-way-4-ba-drivers-enclosed-reference-in-ear-earphones-hifigo-553422.jpg?v=1698801308","https://cdn.shopify.com/s/files/1/0031/0453/8673/files/hiby-yvain-medium-end-three-way-4-ba-drivers-enclosed-reference-in-ear-earphones-hifigo-542817.jpg?v=1698801527","https://cdn.shopify.com/s/files/1/0031/0453/8673/files/hiby-yvain-medium-end-three-way-4-ba-drivers-enclosed-reference-in-ear-earphones-hifigo-719562.jpg?v=1698801435","https://cdn.shopify.com/s/files/1/0031/0453/8673/files/hiby-yvain-medium-end-three-way-4-ba-drivers-enclosed-reference-in-ear-earphones-hifigo-584149.jpg?v=1698801390","https://cdn.shopify.com/s/files/1/0031/0453/8673/files/hiby-yvain-medium-end-three-way-4-ba-drivers-enclosed-reference-in-ear-earphones-hifigo-yvain-iems-631685.png?v=1698801397","https://cdn.shopify.com/s/files/1/0031/0453/8673/files/hiby-yvain-medium-end-three-way-4-ba-drivers-enclosed-reference-in-ear-earphones-hifigo-795586.jpg?v=1698801450","https://cdn.shopify.com/s/files/1/0031/0453/8673/files/hiby-yvain-medium-end-three-way-4-ba-drivers-enclosed-reference-in-ear-earphones-hifigo-864335.jpg?v=1698801418"],"price":239,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-20T16:26:30.201Z"},"share_url":"https://firestarter.network/l/lst_ybe_Cbpn","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_ybe_Cbpn' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy HiBy Yvain Medium-End Three-way 4 BA Drivers Enclosed Reference In-Ear Earphones' 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."]}}