Taps volume up button.

Five seconds later after the poor packets finally make it to the dongle through the congested wifi network, the volume indicator goes up by one notch.

This is also why I'm fed up with my wifi smartswitches and about to put the circuits on contactors controlled by a hardwired relay board. Network latency means no remote control system using it will ever feel "realtime". As humans, we notice those couple dozen extra milliseconds.