{"type":"firestarter.listing","listing":{"id":"lst_1sXZNu21","product_name":"7HZ x Crinacle Zero: 2","category":"In-Ear Monitors","description":"\nThe 7HZ Legacy\n7HZ made global waves with several of its most popular models. IEMs such as the Salnotes Zero, Dioko, and Timeless gathered massive popularity due to their amazing price-to-performance value. 7HZ has proven itself to the worldwide audience as a trusted manufacturer of high-performance IEMs, and will continue its legacy with better innovations and stronger community engagement. \n\n\n\n\n7HZ x Crinacle: The Collaboration That Made History\nThe original Zero, which was made in collaboration between 7HZ and Crinacle, made history by being one of the best performing budget IEM’s in the market. Crinacle is a world renown reviewer, whose frequency graph database has changed the audio market forever. Using his prolific experience with IEM and headphone sound profiles, Crinacle has provided guidance in tuning the Zero once again to have the best tonal balance possible. The updated Zero:2 features Crinacle’s inputs in order to refine this tried-and-true model in order to take it to the next level.\n\n\n\n\n\nMore Bass, Keeping Tonal Excellence\nThe original Zero had one of the best-in-class tonal balance for a budget single dynamic driver IEM. However, this tonal balance also meant taming the bass, which may have been lacking for audiences wanting a more exciting sound. The Zero:2 maintains the perfect sound signature whilst adding on 3dB more in the low frequencies, which provides an engaging and powerful bass presence to bring your music to life. Bass impact and extension are markedly improved, providing more texture and tactile hits to the lows. Additionally, the midrange has a slightly improved body and warmth compared  to the original Zero. The slight warmth in the low-mids provides a fuller sound to instrument and vocal fundamental frequencies, yet still keeping the melodies clean and free from bass bleed. \n\n\n\n\n\nNew 10mm Dynamic Driver\nThe improvements in the tonal characteristics of the Zero:2 were made possible thanks to a newly developed 10mm dual cavity dynamic ","images":["https://cdn.shopify.com/s/files/1/0040/7201/3924/files/203A4941_1_7561cf09-026c-4fe6-958d-1c7b5ee37a4f.jpg?v=1739258197","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/203A4957_21166e0d-d558-46a6-8608-59fd5877a1a3.jpg?v=1739258197","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/203A4970_239c03ca-0f9e-4117-98b9-c4d4bbd5a4f5.jpg?v=1739258197","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/203A4973_72cbbe28-6b15-4e96-8cae-b8e817e228de.jpg?v=1739258197","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/203A4936_d330e43c-147b-48a5-9f51-9a96f21be896.jpg?v=1699944233","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/203A4932_d92c0e7f-de3e-46db-abba-21d37732ba14.jpg?v=1699944233","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/203A24930_ab4506e9-134e-48a6-bda4-8c6749384263.jpg?v=1699944233","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/203A4952_f474023e-14bd-4dd2-b1fe-0a499ffb0b03.jpg?v=1699944233","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/203A4951_07240039-4c35-4688-a50a-963bff591141.jpg?v=1699944233","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/203A4946_55b33a6c-1845-4597-a420-74616446ec98.jpg?v=1699944233","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/7HzZero_1.jpg?v=1727160214"],"price":24.99,"currency":"USD","in_stock":true,"inventory_qty":119988,"dynamic_pricing":false,"listed_at":"2026-06-20T16:26:46.444Z"},"share_url":"https://firestarter.network/l/lst_1sXZNu21","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_1sXZNu21' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy 7HZ x Crinacle Zero: 2' and a budget_max comfortably above $24.99 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."]}}