{"type":"firestarter.listing","listing":{"id":"lst_nMcnjyfm","product_name":"LETSHUOER Astralis","category":"Earphones/IEMs","description":"\n\n\nNext-Generation Ring-Type Planar Driver\nThe LETSHUOER Astralis features a proprietary 15.5mm 5th-generation ring-type planar diaphragm driver. It utilizes a circular planar diaphragm with a ring-shaped nanometer-grade magnetron-sputtered dual-sided voice coil, paired with a PTR elastic film surround. This architecture reduces cone break-up and distortion, while the double-sided voice coil configuration lowers the resonance frequency and enables a faster transient response. The result is a lush, dynamic sound with powerful bass, stable driver performance, and a wider soundstage compared to conventional planar drivers.\n\n\nPrecision Acoustic Architecture\nThe driver is driven by a 4+4 ring-shaped fully symmetrical N52 high-performance magnet arrangement. This optimized magnetic circuit improves efficiency and bass response, working in tandem with the ring-type voice coil wiring to deliver a clean and accurate reproduction across the full frequency range. The 15.5mm round flat diaphragm ensures a coherent and detailed presentation, capturing the finest nuances in the recording.\n\n\nLightweight Aluminum Alloy Housing\nThe earpieces are housed in an ergonomic aluminum alloy chassis, finished in Lunar Silver Grey. The lightweight construction and carefully contoured shape provide featherlight comfort and refined elegance, allowing for long listening sessions without fatigue. The solid alloy build is designed to last.\n\n\nHigh-Purity Cable and Versatile Connectivity\nThe LETSHUOER Astralis comes with a 216-strand high-purity silver-plated monocrystalline copper cable, delivering pure sound and stable signal transmission. A direct solder structure maintains low impedance for uncompromised audio quality. The standard 0.78mm 2-pin interface design provides a secure connection, and the included interchangeable 3.5mm single-ended and 4.4mm balanced plugs provide seamless adaptation to various sources. Additionally, the DT01 Pro 3.5mm to Type-C DAC amplifier cable is included for inst","images":["https://cdn.shopify.com/s/files/1/0040/7201/3924/files/mainLetshuoerAstralisiem1.jpg?v=1778147520","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/mainLetshuoerAstralisiem2.jpg?v=1778147520","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/2c640895d1ff9025a6baf214d04bf172_origin_1.jpg?v=1778147521","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/mainLetshuoerAstralisiem3.jpg?v=1778147522"],"price":189,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-20T16:26:44.031Z"},"share_url":"https://firestarter.network/l/lst_nMcnjyfm","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_nMcnjyfm' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy LETSHUOER Astralis' and a budget_max comfortably above $189.00 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."]}}