{"type":"firestarter.listing","listing":{"id":"lst_doffrrcx","product_name":"Pre Order FiiO M21 CS43198*4 MP3 Portable Music Player","category":null,"description":"\n\nTech Specs:-\n\nSize: Approximately 68mmx121mmx17mm\nWeight: Approximately 193g\nMain controller: Qualcomm Snapdragon 680\nSystem: Android13\nDAC chip: CS43198*4\nScreen: 4.7-inch (750x1334) fully integrated screen\nBattery capacity: 4000mAh\nPower supply: Supports PD2.0 and PD3.0 PPS fast charging\nBattery life: 15h on single end, 11.5h on balance\nRunning memory: 4GB\nBody memory/available memory: 64GB/approximately 52GB\nMemory card expansion: standard TF card slot, supporting 2TB\nEarphone output interface: single ended 3.5mm PO/LO/SPDIF+balanced 4.4mm PO/LO\nUSB interface: Type-C USB 3.0 * 1 (charging/data transfer)+\nType-C POWER IN * 1 (charging/independent power supply interface)\nBluetooth version: five\nBluetooth transmission: AAC/SBC/aptX/aptX HD/LDAC/LHDC\nBluetooth reception: SBC/AAC/LDAC\nOutput power 1: L+R ≥ 950mW+950mW (320/THD+N&lt;1%/balanced/large ear mode)\nOutput power 2: L+R ≥ 185mW+185mW (3002/THD+N&lt;1%/balanced/large ear mode)\nOutput power 3: L+R ≥ 405mW+405mW (320/THD+N&lt;1%/single ended/large ear mode)\nOutput power 4: L+R ≥ 45mW+45mW (300/THD+N&lt;1%/single ended/large ear mode)\nOutput power 5: L+R ≥ 750mW+750mW (320/THD+N&lt;1%/balanced/high gain)\nOutput power 6: L+R ≥ 290mW+390mW (320/THD+N&lt;1%/single ended/high gain)\nSignal to noise ratio: ≥ 126dB (A-weighted)\nBottom noise:&lt; 1.6uV (A-weighted)\nOutput impedance:&lt; ten\nTHD+N: &lt;0.0003%(1kHz/ -4dB@322 )\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n","images":["https://cdn.shopify.com/s/files/1/0031/0453/8673/files/fiio-m21-cs431984-mp3-portable-music-player-hifigo-548595.webp?v=1745598862","https://cdn.shopify.com/s/files/1/0031/0453/8673/files/fiio-m21-cs431984-mp3-portable-music-player-hifigo-464152.webp?v=1745598856","https://cdn.shopify.com/s/files/1/0031/0453/8673/files/fiio-m21-cs431984-mp3-portable-music-player-hifigo-115819.webp?v=1745598854","https://cdn.shopify.com/s/files/1/0031/0453/8673/files/fiio-m21-cs431984-mp3-portable-music-player-hifigo-275497.webp?v=1745598867","https://cdn.shopify.com/s/files/1/0031/0453/8673/files/fiio-m21-cs431984-mp3-portable-music-player-hifigo-831775.webp?v=1745598860","https://cdn.shopify.com/s/files/1/0031/0453/8673/files/fiio-m21-cs431984-mp3-portable-music-player-hifigo-967014.jpg?v=1745995500","https://cdn.shopify.com/s/files/1/0031/0453/8673/files/fiio-m21-cs431984-mp3-portable-music-player-hifigo-722902.jpg?v=1745995530","https://cdn.shopify.com/s/files/1/0031/0453/8673/files/fiio-m21-cs431984-mp3-portable-music-player-hifigo-995012.jpg?v=1745995503","https://cdn.shopify.com/s/files/1/0031/0453/8673/files/fiio-m21-cs431984-mp3-portable-music-player-hifigo-616410.jpg?v=1745995510","https://cdn.shopify.com/s/files/1/0031/0453/8673/files/fiio-m21-cs431984-mp3-portable-music-player-hifigo-704800.jpg?v=1745995527","https://cdn.shopify.com/s/files/1/0031/0453/8673/files/fiio-m21-cs431984-mp3-portable-music-player-hifigo-only-blue-case-982674.jpg?v=1747297140","https://cdn.shopify.com/s/files/1/0031/0453/8673/files/fiio-m21-cs431984-mp3-portable-music-player-hifigo-only-brown-case-177888.jpg?v=1747297161","https://cdn.shopify.com/s/files/1/0031/0453/8673/files/fiio-m21-cs431984-mp3-portable-music-player-hifigo-only-taoe-shell-453543.jpg?v=1747651774","https://cdn.shopify.com/s/files/1/0031/0453/8673/files/fiio-m21-cs431984-mp3-portable-music-player-hifigo-only-taoe-shell-blue-810595.jpg?v=1747737839"],"price":374.98,"currency":"USD","in_stock":true,"inventory_qty":79992,"dynamic_pricing":false,"listed_at":"2026-06-20T16:26:28.969Z"},"share_url":"https://firestarter.network/l/lst_doffrrcx","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_doffrrcx' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Pre Order FiiO M21 CS43198*4 MP3 Portable Music Player' and a budget_max comfortably above $374.98 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."]}}