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BOSE A20 Aviation Headset - Bluetooth: No, Cable: Straight, Impedance: 150 Ohm (high), Connector: LEMO
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Bose A20® Aviation Headset (No Bluetooth) ANR Aviation Headset - Enhanced Version (Non-Bluetooth model)
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Amazon.com: LEFXMOPHY for Bose A20 Aviation Headset Mic cover, Replacement for Bose Proflight Series 2 / A30 Microphone Spongue Pop filter 3-Pack Foam Cover WindScreen : Musical Instruments
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