I have mine working with an additional device that I have strapped to my Woojer. If you search, you can find the full description as to why.
The device I bought and am using with my Woojer is a Monoprice bluetooth connecter that I daisy chain from my Woojer and put a rubber band around it to attach it to the strap. It works and doesn't get in the way.
Hope that helps,
-Duffy
https://www.amazon.com/gp/product/B07W6J2KC6/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
if you want Bluetooth audio you can use an APTx Bluetooth transmitter plugged into the 3.5mm audio out jack. Like this one here
If you’re using a streaming stick for example, the Amazon fire stick, that device has Bluetooth for audio.
For airplay, an Apple TV is going to deliver the best results or by using a USB-C to HDMI adapter for the iPad Pro or a lightning to HDMI adapter for iPhone.
For casting, a google Chromecast would work too.
https://www.amazon.com/gp/product/B07W6J2KC6/ref=ppx\_yo\_dt\_b\_search\_asin\_title?ie=UTF8&psc=1
Hey Dufy but can you confirm you are using airpods or something else?
I have somerthing similar as mentioned in my post, it does the same thing as your bluetooth connector - my one is an anker brand one but even that I cannot get working. As Baz159 wrote, I was experiencing even with that, that it goes to either only the airpods or the woojer strap but does not play both simaltaneously.
I even contacted Woojer and they told me to buy the one they recommend, but that's expensive and has so many bad reviews.
For sound if you wanted to use Bluetooth, you need an HDMI audio extractor if you go with the Epson 8350.
For the other two you can use a Bluetooth Transmitter that support APT-X. This is important because other Bluetooth devices can introduce an audio delay. You would plug the Roku stick into the projector and run a 3.5mm audio cable from the projector to the a Bluetooth Transmitter and then pair your speakers.
Monoprice Premium Bluetooth 5 Transmitter & Receiver with aptx HD
For the 8350 in order to get SDIF Optical or 3.5mm audio out you need to use a HDMI audio extractor, this is one that I always recommend due to high build quality.
OREI hda-912 4K 60hz 18g HDMI 2.0 Audio Converter Extractor spdif + 3.5mm output