An electronic music speaker, amplifier or sound system.

Speaker

A megaphone with sound lines seen from the side.

Megaphone

Handheld flashlight with on/off button seen from the side.  

A metal bin with the lid off behind the can. 

A megaphone or loudspeaker with a handle and zigzag lines indicating sound, facing side.

A side-facing speaker or sound icon with soundwaves inside a circle and a check mark symbol.

A "turn on sound" microphone illustration showinf a mic with a pop screen in front of a big tick button.

A busy and overworked manager or employee surrounded by charts, graphs, and notifications.

A turn on sound illustration represented by a tilted microphone with a wire with a checkmark button covering the top corner.