An external speaker can be connected to the projector via Bluetooth. If you are experiencing issues connecting your Nebula projector which is running Android TV system (like Capsule II, Prizm II Pro, Cosmos, Cosmos Max 4K, Solar, Solar Portable or Vega Portable) to an external speaker, please try the following troubleshooting steps: 

1. Update your projector to the latest firmware version by selecting Settings > Device Preferences > About > System update.
2. Connect your Nebula to another Bluetooth speaker or headphones to verify whether it can be connected.
3. Reset your projector by selecting Settings > Device Preferences > Reset and then try to connect them again.

If this issue persists, please contact us for further assistance. Make sure to mention that you have tried the listed steps so that our agents do not ask you to repeat these steps.