Does the projector display an on-screen volume bar when using external audio devices?

The projector can control the volume of external audio devices through HDMI-CEC when the connected device supports CEC volume control.However, the projector currently cannot display the actual volume level or volume progress bar for external audio devices.

At the moment, it can only send volume up/down commands through CEC, but it cannot accurately read or show the external device’s current volume value on screen.For the most accurate volume adjustment and display, we recommend using your external audio device’s remote control or app.We understand that an on-screen volume bar would be more convenient, and this feedback has been shared internally for future consideration.