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**This model is battery powered, has a straight cord and single U-174 helicopter plug with the dynamic mic for military use. The military model does not come with the Bluetooth feature.**
Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.
It depends on the model you have. If you have a U-174 helicopter version of the Bose A20, a standard converter, like part # 11-10650, will work fine. If you have the low impedance U-174 military Bose A20, you will need an adapter like part # 11-10645.
Yes, this will come with the 5-ohm dynamic microphone used in military applications.
Yes, part # 11-08731 is the low impedance version.
Part # 11-08731 is a low impedance headset. Yes, if you want to use this headset in a high impedance environment, you would need a converter, like Part# 11-06531.
These headsets have a switch in the remote that allows to switch between mono and stereo applications.