Galaxy s8 plus earbud volume very low

[rfnadeem]

I have 2 Galaxy S8 plus  both have ear listening speakers volume very low.its very hard to listen caller voice. Suggestion requires 

[6uldv8]

download a volume booster

[rfnadeem]

doesn't work

[mytech]

Also if you have a case, take it off and give everything a good cleaning.
S8 is getting old too, the speakers could be on their way out 🤦‍♂️
As suggested by @6uldv8, a volume booster app might help 🤷‍♂️

[rfnadeem]

no I don't have case