Pros: Works. Comes with tools!

Cons: None.

Overall Review: I got a guitar pick and a suction cup keyring with mine :)

Pros: Only requires one usb port, small, nice looking.

Cons: Low humming noise only audible when no sound is being produced through them. Have to adjust sound levels through mixer because no physical nobs, but I knew that when purchasing.

Overall Review: They're decent for what they are.