{"type":"firestarter.listing","listing":{"id":"lst_GpSOxRpI","product_name":"Kiwi Ears KE4","category":"Earphones/IEMs","description":"\n\nA Completely New IEM Design\nThe KE4 starts fresh from the ground up, featuring a 2 Dynamic Driver (2DD) isobaric sub-woofer system, combined with 2 Balanced Armature (2BA) full-range and tweeter speakers. The 2 Kiwi Ears custom 10mm dynamic driver focuses on sub-bass impact and slam, highlighting kick drum and bass guitar presence. A RAB 32257 BA driver, which has been customized with enhanced ventilation, ensures a seamless integration of the bass with the midrange, while providing lush and textured vocals and instruments. An American-made Knowles RAD 33518 BA tweeter delivers pristine and natural-sounding treble with excellent upper frequency extension for an airy sound.\n\n\n\nTonal Superiority\nThe KE4 carries Kiwi Ears’ commitment to excellent tonal balance. The KE4 follows our new target tuning, which emphasizes precise sub-bass impact, a warm, yet natural, midrange, and precise treble. It is a sound signature that has been refined throughout the years, and one that we believe to be the most natural and engaging. The tonal signature is suitable for every purpose, from music enjoyment and gaming, to professional on-stage monitoring and audio engineering.\n\n\n\nPrecisely Engineered\nThe Kiwi Ears KE4 has been engineered by hand from start to finish. Featuring a 3-way passive crossover system and 3 independent sound tubes, every miniscule detail of acoustic engineering has been undertaken to achieve its tuning. The shells are made from medical-grade resin and are adorned with hand-finished faceplates.\n\n\n\nAbout Kiwi Ears\nWe are a small international group of engineers with a single goal of producing the best sounding audio solutions for musicians and audiophiles. We focus on developing the latest technological driver innovations with refined tuning strategies that reveal every nuance in your music and performance. Our small team of dedicated engineers handcraft each unit so that you can worry less about what’s in your ears and focus more on the sounds you are making. We’","images":["https://cdn.shopify.com/s/files/1/0040/7201/3924/files/KIWIEARSKE4.jpg?v=1735899362","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/IMG_6154.jpg?v=1735899362","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/IMG_6150.jpg?v=1735899362","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/IMG_6143.jpg?v=1735899362","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/IMG_6147.jpg?v=1735899362","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/203A3851.jpg?v=1735899362","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/203A3861.jpg?v=1735899362","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/2_2.jpg?v=1735899362","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/1_3_c0f5161d-a1d4-4b64-b543-f0e125c66b2e.jpg?v=1735899362","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/IMG_6141.jpg?v=1735899362","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/3_1_d357001b-bd4a-4838-a223-1b97fae83bd0.jpg?v=1735899362","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/203A3836.jpg?v=1735899362"],"price":199,"currency":"USD","in_stock":true,"inventory_qty":19998,"dynamic_pricing":false,"listed_at":"2026-06-20T16:26:45.314Z"},"share_url":"https://firestarter.network/l/lst_GpSOxRpI","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_GpSOxRpI' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Kiwi Ears KE4' 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."]}}