{"type":"firestarter.listing","listing":{"id":"lst_KCjCCZwy","product_name":"DDHiFi TC19","category":"Audio Cable","description":"\n\n\nElevated Sound Quality\nWhen using a smartphone, tablet, or computer as your digital source, the USB cable’s influence on audio can outweigh pure data-transfer speed. Most decoding and amplification devices employ USB 2.0 interfaces with solid shielding to guard against electromagnetic interference. The TC19 takes this further by prioritizing stable signal transfer over raw bandwidth—so you hear every nuance, not noise.\n\n\nFour-Wire Parallel Design Yet Exceptionally Flexible\nThe TC19’s all-new data cable aligns four pure-silver conductors—power positive, data negative, data positive, and power negative—in parallel within a housing no wider than a smartphone port. Achieving this requires ultra-slow, high-precision twisting and insulation wrapping to maintain perfectly uniform thickness, resulting in a supple, kink-resistant cable that delivers immaculate signal accuracy without sacrificing flexibility.\n\n\n\nSeamless Metal Shielding\nSignal leakage often starts at plug joints and solder points. To stop it at the source, the TC19 uses a CNC-machined, one-piece metal shell with zero-gap interlocking seals. This fully enclosed cavity isolates internal circuits from external interference, banishing electromagnetic crosstalk before it can ever reach your playback chain.\n\n\nErgonomic Plug Design\nA smooth curved protrusion at the cable’s tail end aligns with your finger’s natural arc, making insertion and removal effortless. The mix of hard-edged metal and gentle curves delivers both practical comfort and a premium tactile experience.\n\n\n\nVersatile Length Options\nAvailable in 10 cm, 25 cm, and 45 cm versions, the TC19CC adapts to every setup:10 cm &amp; 25 cm: Perfectly pocket-sized for smartphone DAC/amps on the go.45 cm: Ideal for desktop rigs and larger audio decoders, giving you reach without clutter.\n\n\n","images":["https://cdn.shopify.com/s/files/1/0040/7201/3924/files/TC19CC.jpg?v=1751530850","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/TC19CC-03.jpg?v=1751530850","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/TC19CC-02.jpg?v=1751530850","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/TC19CC-01.jpg?v=1751530850","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/TC19CC-04.jpg?v=1751530850","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/TC19CC-05.jpg?v=1751530850","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/TC19BC.jpg?v=1751530850","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/TC19BC-03.jpg?v=1751530850","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/TC19BC-02.jpg?v=1751530850","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/TC19BC-04.jpg?v=1751530850","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/TC19BC-05.jpg?v=1751530850","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/TC19BA-02.jpg?v=1751530850","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/TC19BA-03.jpg?v=1751530850","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/TC19BA-01.jpg?v=1751530850","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/TC19BA-04.jpg?v=1751530774","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/TC19BA-05.jpg?v=1751530774"],"price":59.99,"currency":"USD","in_stock":true,"inventory_qty":39996,"dynamic_pricing":false,"listed_at":"2026-06-20T16:26:44.909Z"},"share_url":"https://firestarter.network/l/lst_KCjCCZwy","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_KCjCCZwy' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy DDHiFi TC19' and a budget_max comfortably above $59.99 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."]}}