{"type":"firestarter.listing","listing":{"id":"lst_piF4vx1I","product_name":"ROSESELSA CJ20 14.2mm Planar Magnetic Driver IEMs","category":null,"description":"Features:-\n>Co-Tuned with Andy Audio Vault.\n>14.2mm Large Planar Magnetic Driver High-Performance IEMs.\n>All-Metal Construction.\n>Built Especially for Rock and Metal Music.\n>Two Types of Eartips(Wide Bore/Narrow Bore).\n>Fast Transients, Crystal Clear Details.\n>Quick, Punchy Sound Profile.\n>HiFi Graphene Plated OCC Single Crystal Copper Cable.\n>Modular Termination Plug System(3.5mm+4.4mm Plugs).\nTechnical Information:-\n>Impedance: 24Ω±10%.\n>Sensitivity: 102±3dB.\n>THD+N: ≤3%@1kHz.\n>Frequency Response Range: 20Hz~20kHz.\n>Connector Type: 0.78mm 2-Pin.\n>Termination Plug: 3.5mm+4.4mm.\nROSESELSA CJ20 is a brand new planar magnetic driver IEM equipped with a large 14.2mm planar driver on each side. The pair is co-tuned in collaboration with Andy from Andy Audio Vault, the super mind behind the highly-acclaimed dongle madness series of video reviews. The Roseselsa CJ20 is tuned for Metal and Rock Genres, it even comes with two sets of ear tips, one with wide bore and one with narrow bore to suit both the genres well. With its massive planar magnetic driver unit, the ROSESELSA CJ20 delivers crisp sound with high-resolution clarity and lightning-fast transients. Explore your favourite music like never before with the all-new ROSESELSA x AAV CJ20.\nCo-Tuned with Andy Audio Vault:-\nAndy from Andy Audio Vault is a famous personality in the HiFi audio world. He has decades of experience in evaluating HiFi audio gear and is widely known for his dongle madness DAC/AMP review series. Andy has poured his years of critical listening, meticulously adjusting the CJ20 to be a perfect choice for Rock and Metal music genres. He is a metal enthusiast himself and the CJ20 is crafted to be a legendary IEM for audio lovers!!\nFast and Punchy Sound with a Large Planar Driver:-\nROSESELSA CJ20 is equipped with a large 14.2mm planar magnetic driver unit. It delivers exceptionally fast transient response and minimal distortion with high-resolution clarity a","images":["https://cdn.shopify.com/s/files/1/0031/0453/8673/files/roseselsa-cj20-142mm-planar-magnetic-driver-iems-roseselsa-cj20-864998.jpg?v=1773237343","https://cdn.shopify.com/s/files/1/0031/0453/8673/files/roseselsa-cj20-142mm-planar-magnetic-driver-iems-roseselsa-453772.jpg?v=1773237328","https://cdn.shopify.com/s/files/1/0031/0453/8673/files/roseselsa-cj20-142mm-planar-magnetic-driver-iems-roseselsa-572037.jpg?v=1773237350","https://cdn.shopify.com/s/files/1/0031/0453/8673/files/roseselsa-cj20-142mm-planar-magnetic-driver-iems-roseselsa-804699.jpg?v=1773237315","https://cdn.shopify.com/s/files/1/0031/0453/8673/files/roseselsa-cj20-142mm-planar-magnetic-driver-iems-roseselsa-604410.jpg?v=1773237325","https://cdn.shopify.com/s/files/1/0031/0453/8673/files/roseselsa-cj20-142mm-planar-magnetic-driver-iems-roseselsa-238620.jpg?v=1773237338","https://cdn.shopify.com/s/files/1/0031/0453/8673/files/roseselsa-cj20-142mm-planar-magnetic-driver-iems-roseselsa-447070.jpg?v=1773237341"],"price":169,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-20T16:26:28.518Z"},"share_url":"https://firestarter.network/l/lst_piF4vx1I","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 ","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_piF4vx1I' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy ROSESELSA CJ20 14.2mm Planar Magnetic Driver IEMs' and a budget_max comfortably above $169.00 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."]}}