Need suggestions on home theater audio extender solutions?

[MoonFrost]

My mom's birthday is coming up and I don't know what I'm looking for. She has a home theater system for music /movies in her living room, and wants it to somehow reach her bedroom roughly 25 feet away so she doesn't have to blast the volume in the living room and irritate her neighbors. (she lives in an apartment). 

 

So I know about wifi extenders for internet and I assumed there is something similar for audio? Like somehow have a speaker in her bedroom wirelessly connected to the system in the living room. Any suggestions? 

[Derkoli]

58 minutes ago, MoonFrost said:

My mom's birthday is coming up and I don't know what I'm looking for. She has a home theater system for music /movies in her living room, and wants it to somehow reach her bedroom roughly 25 feet away so she doesn't have to blast the volume in the living room and irritate her neighbors. (she lives in an apartment). 

 

So I know about wifi extenders for internet and I assumed there is something similar for audio? Like somehow have a speaker in her bedroom wirelessly connected to the system in the living room. Any suggestions? 

Could always just buy longer wires. 16 gauge is fine for about 100ft. unfortunatley wireless power just cannot provide enough power over that distance to power speakers. even super effecient ones like klipschorn floorstanders.