Pros: Good sound quality, good selection of tips
Cons: Cheap, no case, microphonics
Very nicely balanced overall. Bass very slightly lacking, but this is a matter of taste. Lots of tips to choose from, and came with foamies!
Cheaply put together though. Loads of microphonics. Clip is useless. Thought I heard some imbalance but it went away with burn-in. Questionable quality?
After further burn-in, my Betas became very bass dominant, though still with excellent overall sound quality. I wouldn't buy the Betas again. Sent back to Hong Kong for warranty and I sold the replacements.