{"type":"firestarter.listing","listing":{"id":"lst_FWnCEK39","product_name":"SUPERTFZ FORCE 5","category":"Earphones/IEMs","description":"\n\n\n11.4mm Super Magnetic Dynamic Driver & Two-Crossover Technology\nSUPERTFZ FORCE 5 features 11.4mm super magnetic dynamic driver unit, N52 strong magnet, with graphene Nano-diaphragm, excellent restoration of various music information, flat frequency response without sound coloration, rich high-definition detail levels, and precise positioning, in your creative recording and contraction, precise calibration during mixing. The unit has an independent ultra-high frequency crossover technology, which is comparable to the resolution of the balanced armature, which can ensure the ultra-high frequency restoration and transient performance of some details of the musical instrument.\n\n\n\n\n\nDual Cavities Design\nThe drive unit with dual cavities, due to the addition of a tuning rear cavity, is mutually tuned with the front cavity of the unit, and the cavity is larger than that of the ordinary drive unit, which is equivalent to increasing the linear space of the unit. By adjusting the size of the rear cavity and the air permeability coefficient , can significantly improve the mid-frequency response, the sound is smooth, and at the same time reflect a broad and magnificent sound field, there are acoustic guide holes on the back of the drive unit, reasonable control of the guide holes can optimize the movement of the diaphragm, and the frequency response control can effectively improve the transient characteristics of the bass, and accurately Reproduce the rhythm of each frequency point to ensure the true restoration of the scene information.\n\n\n\n\n\nProfessional Stage Tuning\nMore than 20 band singers and sound engineers participated in in-depth joint tuning to ensure the output of professional-grade real monitor sound and high reproduction without sound coloration, and to provide excellent sound support during live performances and mixing creation and recording.\n\n\n\n\n\nErgonomic Design\nBased on the contour shape of the human ear, the lightweight design is light and painless when ","images":["https://cdn.shopify.com/s/files/1/0040/7201/3924/products/2.1.jpg?v=1663670845","https://cdn.shopify.com/s/files/1/0040/7201/3924/products/1_0e221b54-8aa4-48b0-add3-56410df25be8.jpg?v=1663670845","https://cdn.shopify.com/s/files/1/0040/7201/3924/products/5_3f1b4430-0ae0-473e-b600-117ba1a0c8f5.jpg?v=1663670855","https://cdn.shopify.com/s/files/1/0040/7201/3924/products/1_6bec79ab-7ef3-44a7-ace8-3becfa9f20ee.jpg?v=1663670856","https://cdn.shopify.com/s/files/1/0040/7201/3924/products/3_cde80b84-ab54-41a4-94eb-bcc521faf759.jpg?v=1663670855","https://cdn.shopify.com/s/files/1/0040/7201/3924/products/4_f33d5e79-70b6-49e2-ad5a-22e2e86d22b7.jpg?v=1663670856"],"price":199,"currency":"USD","in_stock":true,"inventory_qty":19998,"dynamic_pricing":false,"listed_at":"2026-06-20T16:26:47.249Z"},"share_url":"https://firestarter.network/l/lst_FWnCEK39","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_FWnCEK39' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy SUPERTFZ FORCE 5' and a budget_max comfortably above $199.00 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."]}}