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The dual-DAC architecture unlocks enhanced detail, wider soundstage, and refined layering—turning every song into a vivid sonic landscape.\n\n\n\n\nFlagship-Class Headphone Amp\nPowered by 4× OPA1622 op-amps in a dual-channel parallel configuration, this setup delivers bold dynamics, lightning-fast transients, and powerful drive. Whether you're using dynamic, planar, or BA earphones—this amp brings out their full potential.\n\n\n\n\nMassive 4000mAh Battery\nEnjoy extended playback time and a stable, clean power supply to your audio circuitry. 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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_UIAxN3c8' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy HiBy R3 PRO II' 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."]}}