The product works as advertised, and is very simple to use

Product worked as advertised

Works as advertised

Works as advertised, well worth money spent Koss makes great products for the home or car, so if you want or need a volume control then this one is for you!

Works as advertised

The control works as advertised and met my expectations.

works as advertised

Works as advertised and is a pretty hard to find little item these days.

Works as advertised and both left and right are balanced

works great as advertised.

Easy to control, works as advertised.

Works as advertised!

Works as advertised!

Works as advertised.

Does work as advertised in description.

It works as advertised, it's nice and small and adds a little length to your existing headphone cord

This does work as advertised, but there's a problem they don't tell you about

I'm taking off one star for false advertising.

Works as advertised, great mini-amplifier for headphones.

This way we can both have it as loud or as low as we want.

Agreed, it was inexpensive, but I still have a volume problem almost as bad as before I got it.

Works exactly as I expected

Overall it works and gives me a way to control the volume but not as sensitive as I would like.

it works as it should and faces rude treatment during use yet continues to work

THe price was right and the thing works as I expected it to

Works exactly as it is supposed to