New answers tagged representation
I would show the connection direction with an arrow like: [microphone image]-------->[cam image]
I got theese two sketeches: Maybe they Inspire you
If it plugs specifically to a wall you could use something like this, which includes both the classic bolt icon and also a specific plug to the wall:
A lighting bolt denotes charging on both iOS and Android. Wall sockets vary country to country, a lightning bolt is synonymous with power.
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