{"type":"firestarter.listing","listing":{"id":"lst_qyFreO_-","product_name":"KZ Duet","category":"Earphones/IEMs","description":"                                          Dual Dynamic Driver System                KZ Duet is equipped with quad-core dual dynamic driver units, and this innovative design features independent 10mm super-stroke bass and 8mm high-performance dynamic drivers. The 10mm unit delivers deep sub-bass down to 20Hz, while the 8mm unit ensures clear, layered sound with high sensitivity. Together they provide precise sound reproduction for immersive gaming cues and rich Hi-Fi music enjoyment.                                                                                Groundbreaking Bass Compensation Tech                Duet's innovative structural breakthrough delivers precise bass compensation, providing earbud-style headphones with unprecedented low-frequency performance. Experience powerful, detailed bass with enhanced transient response. Perfectly reproduces both music and game audio-from thunderous beats to subtle footsteps-ensuring exceptional sound quality across all media.                                                                                Precision Acoustic Crossover Technology                Even with semi-in-ear design, our advanced acoustic crossover delivers pure HiFi sound. The Super-Stroke Bass Driver and ultra-thin mid-high driver work in perfect synergy to produce deep, resonant bass without muddiness while maintaining natural vocals and silk-smooth instrument clarity. Experience immersive performance whether gaming or listening to music.                                                                                Professional Dual-Mic with 3.5mm Jack                Upgraded from a single 4mm mic to dual 6mm professional condenser microphones, with sensitivity increased from -42dB to -26dB. Features redesigned noise-reducing circuitry for crystal-clear communication in esports and calls, ensuring every word is captured with precision. Features 3.5mm interface for universal compatibility with phones, PCs, and consoles.                          ","images":["https://cdn.shopify.com/s/files/1/0040/7201/3924/files/2_c5276edf-3101-4348-9498-be3de63dc831.jpg?v=1756801956","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/3_01e667d9-ed8c-4608-9b6e-0e3c6e8f05cb.jpg?v=1756801956","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/4_fd77bc2c-4ad9-43e0-82b2-57a0f70e122e.jpg?v=1756801956","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/1_981b9a94-e838-4d2b-8017-06bc5291a508.jpg?v=1756801980","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/2_9d184b7b-d600-46ab-8d6f-b2aaaccaf248.jpg?v=1756801980","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/5_b82a72d4-4b25-4f97-aa95-95e054c0becd.jpg?v=1756801980"],"price":27.99,"currency":"USD","in_stock":true,"inventory_qty":29997,"dynamic_pricing":false,"listed_at":"2026-06-20T16:26:44.698Z"},"share_url":"https://firestarter.network/l/lst_qyFreO_-","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_qyFreO_-' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy KZ Duet' and a budget_max comfortably above $27.99 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."]}}