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Bose A20 Headset Cable Assembly with Microphone

Key features

  • Industry-leading active noise reduction with clear audio and comfortable fit
  • Audio prioritisation controls with multiple customisable settings
  • At least 45 hours of battery life from two AA batteries1 (Bluetooth® use may reduce battery life)
  • Shielded straight cable for greater EMI resistance
  • Full-function Bluetooth® capability provides Bose® quality sound2
  • Auto-on feature automatically turns on A20® when aircraft power is detected
  • Popular on many new and homebuilt aircraft
  • Wired aux audio input
  • Metal connectors for robust and durable performance
  • Certified to FAA TSO C-139, EASA ETSO-C139
1Battery powered cables only
2Only available on cables with Bluetooth® functionality 

Available Options

Part NumberDescriptionConditionPriceAvailabilityStockOrder Qty 
327070-2020Bose A20 Headset Cable Assembly w/ microphone (GA, Dual Plug, Battery, non BT, Straight Cord)NEW$770.00In stock1
327070-3020Bose A20 Headset Cable Assembly (GA, Dual Plug, Battery, BT, Straight Cord)NEW$770.00Out of stock0
327070-3040Bose A20 Headset Cable Assembly (Flexpower, Lemo, 6 Pin, BT, Straight Cord)NEW$770.00Out of stock0
327070-T040Bose A20 Headset Cable Assembly (Flexpower, Lemo, 6 Pin, BT, Coiled Cord)NEW$650.00Out of stock0
327070-3030Bose A20 Headset Cable Assembly (Helicopter, Battery, BT, Straight Cord)NEW$550.00Out of stock0
327070-T030Bose A20 Headset Cable Assembly (Helicopter, Battery, BT, Coiled Cord)NEW$650.00Out of stock0
327070-3070Bose A20 Headset Cable Assembly (Airline, Flexpower, 5 Pin, BT, Straight Cord)NEW$550.00Out of stock0
327070-X130Bose A20 Headset Cable Assembly (Helicopter, Battery, non BT, Coiled Cord)NEW$650.00Out of stock0
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IN-HOUSE INSTALLS AND MAINTENANCE

PART NUMBER POWER CONNECTOR IMPEDANCE BLUETOOTH CABLE
327070-3040 Flex Lemo High YES Straight
327070-T040 Flex Lemo High YES Coiled
327070-3020 Battery Dual High YES Straight
327070-3030 Battery U174 High YES Straight
327070-T030 Battery U174 High YES Coiled
327070-3070 Flex XLR5 High YES Straight
327070-X130 Battery U174 Low NO Coiled
  • Bose A20 Headset Cable assembly
  • Microphone included

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PART NUMBER POWER CONNECTOR IMPEDANCE BLUETOOTH CABLE
327070-3040 Flex Lemo High YES Straight
327070-T040 Flex Lemo High YES Coiled
327070-3020 Battery Dual High YES Straight
327070-3030 Battery U174 High YES Straight
327070-T030 Battery U174 High YES Coiled
327070-3070 Flex XLR5 High YES Straight
327070-X130 Battery U174 Low NO Coiled