BOSE TSO'd A20 Series Aviation Headsets SKU: BOSE-HDST-A20
Bose A20 Dual plug headset for sale, one owner, includes Bose bag, original carton, manual, stereo cable $550 - Avionics / Parts Classifieds - Mooneyspace.com - A community for Mooney aircraft owners and enthusiasts
User manual Bose A20 (English - 212 pages)
Amazon.com: Bose A20 Aviation Headset with Standard 5-Pin XLR Plug Cable, Black : Electronics