It should be possible to turn off the Bluetooth function of the Charge 5 when traveling by plane. See e.g. British Airways:
https://www.britishairways.com/cms/global/pdfs/handheld-devices-used-onboard_Dec14.pdf"All Bluetooth accessories [...] must remain switched off for taxi, take-off and landing"
Currently, it is not possible to be compliant.
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