{"type":"firestarter.listing","listing":{"id":"lst_3a38ogBX","product_name":"Twin Lazers B-stock","category":"Guitar Effects Pedal","description":"If you don't mind a little scuff, scratch or nick, you can save a few bucks.\nWhile B-stock units have minor cosmetic defects, the internal components are the same as a standard pedal and they carry the standard 1-year Mr. Black Warranty.\nPLEASE NOTE:NO RETURNS/EXCHANGES/REFUNDS.ALL B-STOCK SALES FINAL!\n \nInspired by the long standing king of dual phase-shifters, this is true-stereo phase shifting at its finest.\nTwo fully-independent 4-stage or 6-stage phase-shifters (4-stages per phaser in Green mode, 6-stages per phaser in Red mode), can be run independently in stereo, or chained together via a standard patch cable to double the stages for series-mono 8-stage or extra syrupy 12-stages of phase-shifting swirl.\nPhase oscillator rate is displayed via a pulsing LED indicator adjacent to the Rate control and cycle times range from a crawling 0.2Hz (5 second cycle) - 5Hz (200mS cycle) on the dial.\nThe Shift control affords a phase shift/lag of between 0° - 180° between the dual phaser-shifter oscillators.  When set at 90° in a stereo rig, the sound is truly mesmerizing as the swirl seems to be rotating around you, yet impossible to discern whether it is rotating clockwise, or counter-clockwise.  In series, a whole new world of phase sounds await by simply adjusting the Shift control.\nA full Mix control allows even more options and sounds allowing for light swirl, or full, thick &amp; ooey-gooey phase-modulation.\nA preset is easily saved by pressing the Save button, and recalled using the Preset footswitch.\nAn expression pedal can be assigned to any or all controls on the fly by simply connecting a standard expression pedal and rotating the desired control to the maximum setting (EXP. marker) on the dial.\nA standard external tap-tempo footswitch can be connected to the Tap/Exp. jack and extends the oscillator range out to a 12.5 second maximum cycle.The Twin-Lazers tap-tempo oscillator automatically resets to the beginning of the cycle upon the second tap-tempo press so y","images":["https://cdn.shopify.com/s/files/1/0174/5126/files/TwinLazersK1-B-Stock.jpg?v=1690224584"],"price":219.95,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-20T16:26:48.815Z"},"share_url":"https://firestarter.network/l/lst_3a38ogBX","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_3a38ogBX' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Twin Lazers B-stock' and a budget_max comfortably above $219.95 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."]}}