{"type":"firestarter.listing","listing":{"id":"lst_GPFz6oYR","product_name":"FiiO OAK NANO","category":"Earphones/IEMs","description":"                                          A New Movement in Sound: The OAK Series Debut                OAK NANO draws inspiration from classic wristwatch aesthetics, combining watch-grade craftsmanship with a pure titanium CNC-machined shell. This flagship product offers an elegant, mirror-finished design built to stand the test of time.                                                                                13.8mm External Magnet Driver                Building on the legacy of the FD7, the OAK NANO steps up to a larger 13.8mm driver with an enlarged and thickened magnet. Magnetic flux density reaches nearly 1.5T within the voice coil gap, with distortion as low as 0.1% even at 114dB SPL. This immense magnetic force provides raw driving power for greater amplitude and superior transient response, delivering a remarkably full-bodied and authoritative sound.                                                                                Cryo-Treated Silver-Plated Cable                The OAK NANO features a 6N monocrystalline copper cable with silver-plated conductors, subjected to over 100 hours of deep cryogenic treatment at -192°C. This liquid nitrogen process releases internal stresses within the metal, optimizing the microstructure for smoother and more natural audio signal transmission. The result is a conductor of exceptional purity that preserves every detail of your music.                                                                                High-Flux Magnetic Control                Upgraded with a 13.8mm driver and a larger magnet, the OAK NANO reaches a magnetic flux density of nearly 1.5T. This immense force ensures powerful driver control and maintains distortion as low as 0.1% even at 114dB SPL, delivering exceptional transient response.                                                                                Precision Acoustic Tuning                Features the Acoustic Prism system to correct phase and eliminate time-lag for refine","images":["https://cdn.shopify.com/s/files/1/0040/7201/3924/files/Enhancer-Ultra_HD-_2.jpg?v=1782381213","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/1.95.jpg?v=1782365940","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/6a6fa0dbe576e5e029cc174a82c921fc.png?v=1782365940","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/86df2d44c9e6b96dd03dd567c1169548.jpg?v=1782365940"],"price":486.65,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-07-03T16:17:11.657Z"},"share_url":"https://firestarter.network/l/lst_GPFz6oYR","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_GPFz6oYR' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy FiiO OAK NANO' and a budget_max comfortably above $486.65 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."]}}