Bought these on sale and am impressed. Pros: Large drivers (50mm) are said to offer excellent volume and frequency response. Comfortable even for big ears and head size. Build quality is really good for plastic and seems solid enough to last a couple of years. At least a lot longer than most other devices I've had in this price range. The Bad: The crappy USB-powered lighting is almost too bright and has no practical use other than wasting a USB port. The mic volume on what I got is ridiculously low and poor quality. Ordinary speech can sound like canned food and strings.