An electronic music speaker, amplifier or sound system.

Speaker

A person sitting down, with his computer and headphones, participating in an online class, watching a movie or listening to music.

Person With Laptop And Headphones

A tilted poster pasted up with tape at irregular parts of the poster.

Short building, with thin and large windows, part of a city landscape.

A long horizontal park bench without arms. 

A round retro vinyl or a CD with a hole in the middle to play music. 

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