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Continue to ChatPTT Adapter, 3.5mm TS to RCA Jack for Maestro https://pileupdx.com/product/ptt-adapter-3-5mm-ts-rca-jack/
PTT Adapter, 3.5mm TS to RCA Jack for Maestro https://pileupdx.com/product/ptt-adapter-3-5mm-ts-rca-jack/