USING A BLUETOOTH SPEAKER AND ZMAIL WITH THE ZOOM APP

[GM68]

I'm a member of the Eumundi Rotary club in Queensland, Australia, and we recently bought a new BenQ EH600 smart projector, along with a Bose S1 Pro Plus speaker.   Both devices are Bluetooth capable, and the projector and speaker happily connect for all purposes except when we run the Zoom App on our projector.   We simply cannot get the Bose speaker to work within the Zoom App and we don't know why?  At the moment we have to resort to connecting the speaker by cable into the projector's audio-output port, and whilst this is a solution of sorts it's not preferable because we're trying to be wireless wherever possible.   Can anybody help us with this please?

Also, we can schedule Zoom meetings within our Zoom App but we understand that we need to install Zmail within our Zoom App so that we can then send out the invitation links to Zoom attendees, but at this stage we cannot install Zmail within our Zoom App because the BenQ projector tells us that we "need to upgrade our projector's OS to install and run Zmail".   Our projector has an Android OS version 6 and it may be that we need a later Android OS to be able to install and run Zmail within our projector's Zoom App.   Can anybody clarify this for us please?, and if so, how do we go about upgrading our projector's OS?   Many thanks for your assistance.  Greg