{"type":"firestarter.listing","listing":{"id":"lst_-NzGfKtk","product_name":"HeartField Astella","category":"Earphones/IEMs","description":"\n  \n\nMarble Panel Elegance\nThe ASTELLA features an exquisite marble panel, meticulously crafted by artisans who cut and polish thick, yet delicate marble into panels thinner than 2mm. Unlike standard options, this advanced marble panel is used across all models. The complex, uneven surface requires exceptional skill, but at ASTELLA, we are committed to offering a product that is elegant, substantial, and sincere to each user.\n\n  \n\nEST with 10 Balanced Armature Drivers\nThe ASTELLA combines ultra-smooth electrostatic high-frequency drivers with PUR technology to enhance its competitiveness. Compared to its predecessor, the Starry Pro, we optimized the electrostatic drivers' potential without compromising their performance, significantly improving midrange detail. Every subtle adjustment was carefully considered to achieve exceptional sound quality, making ASTELLA a product we proudly stand behind.\n\n  \n\nPremium Cable Design\nWe’ve explored various cables and their impact on sound. Although some users express skepticism about stock cables, we believe this product tells a story: sometimes, the original cable is indeed the best choice. Our high-purity copper cable, coated in Teflon, eliminates instability caused by length (approx. 1.2m). Its striking orange color reflects its quality—sometimes, the original cable is the one to beat!\n\n  \n\nElegant Design and Acoustic Excellence\nThe ASTELLA features a dark, elegant gold-colored casing with a design focused on sound tuning. Internal shielding layers minimize external interference, while high-purity silver-plated wires enhance speed and accuracy, improving vocal performance and expanding the soundstage. The ASTELLA delivers unparalleled detail, from vocals to symphonies.\n\n  \n\nSuperior Splitter\nWe discovered that a well-chosen splitter can enhance sound quality. After testing various options, we found that a pure copper gold-plated splitter offered superior performance, revealing more details and providing better separation in t","images":["https://cdn.shopify.com/s/files/1/0040/7201/3924/files/1_cad9ff83-a8ea-4e1e-add1-c86074c92a06.jpg?v=1722422485","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/DSCF7254.jpg?v=1722422485","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/DSCF7256.jpg?v=1722422485","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/DSCF7319.jpg?v=1722422485","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/d375460951577d587a2d848b6e862450.jpg?v=1722422485"],"price":1999,"currency":"USD","in_stock":true,"inventory_qty":19998,"dynamic_pricing":false,"listed_at":"2026-06-20T16:26:45.950Z"},"share_url":"https://firestarter.network/l/lst_-NzGfKtk","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_-NzGfKtk' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy HeartField Astella' and a budget_max comfortably above $1999.00 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."]}}