ONN Tablet Sound Enhancer (Directional Sound Amplification) (Black, White)

Very cheaply made. Crazy plastic rollers fall right off not retained by anything very cheap and crappy. Not happy with it at all.

worthless for 7" Samsung Tablet. Might have slight improvement for some other tablets.

No good

Cheap plastic maybe worth a dollar but works as advertised. Be careful when installing or removing; easy to break.