How can wired headphones and the built-in speaker work at the same time?

🚀️The following applies to the Valerion Max & Pro2 & Pro & Plus2 & Plus

 

Enable Headphone Mode: On the projector, go to Settings -> Display & Sound -> Sound -> Wired Headphone -> Headphone Mode and select Headphone with Speakers. This will allow both the projector’s built-in speakers and the wired headphone to output audio simultaneously.