The volume of the portable projector does not change when the volume button of the smartphone is pressed while using the mirroring function.
IMPORTANT: This article applies only to specific products and/or operating systems. Check the Applicable Products and Categories section of this article before starting these steps.
Depending on the smartphone, some functions like volume adjustment cannot be controlled when using the mirroring function. To know what functions can be controlled using the mirroring function, check the specifications of the smartphone or contact the manufacturer.