User can play music from speakers on their body.

Pros:
-user can get a party started
-user can make a dull situation better
-user can change volume
-user will have musical talent

Cons:
-user will get a headache if playing too much
-user will be bombarded with requests
-user will strongly dislike earworms (songs that stick in your head so much that that you despise it)

Weakness: silence
User will always need some type of noise to not feel uncomfortable