Pros: Small, long battery life, does what it's meant to do well
Cons: Sloppy volume/gain adjustment
A neat little headphone amp. Bought to use with my Pro900s. Definitely intensifies the v-shaped sound signature of these headphones. Sounds exactly as I expected it to, lots of fun to listen to! The gain/volume adjustment is the single worst I have EVER used on ANY product however, just absolutely terrible. Other than that this is a neat little amp for a cheap price.