{"type":"firestarter.listing","listing":{"id":"lst_L9uvWDPV","product_name":"EarAcoustic Audio STA Hi-End Series","category":"In-Ear Monitors","description":"                                            Advanced Acoustic Engineering for Exceptional Sound                        The STA series is built with cutting-edge dual-core dynamic coil technology, featuring Tesla-level magnetic coils for superior energy and performance. With a four-unit bilateral configuration, it delivers stunning analytical clarity and a vast dynamic soundstage. The 6mm micro coil handles high to ultra-high frequencies, while the 10mm large dynamic coil excels in mid-low frequencies. Equipped with an N50+N50 magnet system, it ensures double the driving force and a magnetic flux of approximately 10,000 GS, providing a robust sense of energy and unmatched sound quality.                                                                                    STA-Hi End: High-Performance Transient Sound                        The STA-Hi End features a 10mm ultra-rigid beryllium-plated diaphragm and a 6mm polymer composite diaphragm, using a dual-diaphragm design. This combination provides outstanding transient response and a balanced frequency range. The beryllium plating has an elastic modulus of around 300 GPa, allowing for a quick response to audio signals.                                                                                    STA-Hi End MAX: Advanced Durability and Response                        The STA-Hi End MAX is equipped with a 10mm DLC (diamond-like carbon) diaphragm and a 6mm polymer composite diaphragm, utilizing a dual dynamic coil design. The DLC diaphragm has an elastic modulus of around 400 GPa, offering fast signal response and a smooth frequency range.                                                                                    Precision Engineering for Unmatched Audio Experience                        The STA has undergone hundreds of rigorous and meticulous directional simulation experiments to design a standardized acoustic volume cavity structure. This ensures stunning resonance with musical emotions through rational ","images":["https://cdn.shopify.com/s/files/1/0040/7201/3924/files/STA-HiEndMAXSKU1.jpg?v=1740970367","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/STA-HiEndSKU.jpg?v=1740970368"],"price":59.9,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-20T16:26:45.260Z"},"share_url":"https://firestarter.network/l/lst_L9uvWDPV","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_L9uvWDPV' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy EarAcoustic Audio STA Hi-End Series' and a budget_max comfortably above $59.90 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."]}}