If you want to get a better audio experience while using the Anker Nebula Capsule projector, you may prepare a Bluetooth speaker and follow this guide to connect both of them. There are two ways for you to connect Anker Nebula Capsule projector to a Bluetooth speaker.
Anker Nebula Capsule projector is featured with Bluetooth4.1, You can connect speaker to the projector via Bluetooth.
Prepare a USB cable, plug one end to the USB port of the Anker Nebula Capsule projector, and plug another end into your speaker.
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