There is no reason why you would not want to buy in-ear headphones that have less than a 13mm driver. The kick from the bass is amazing and it balances the high and mids perfectly. ThermalTake has done an excellent job in terms of durability, comfort, construction, sound quality, and style for this product. Audio 10/10 (for in-ear), comfort 9/10 (they should add a bulb or triangle to the end of the ear-hook for extra grip but this does not mean they fall out regularly), weight 9/10 (these weigh the same as 9mm ear-buds. the ultra lightweight mic and plastic used to make these feels like air), mic quality 8/10 (It's a mic coming from an in-ear headphone. It's very good, but obviously not studio quality), cord length 10/10 (not too much, not too little), accessories 10/10 (you couldn't ask for more than what is listed), build quality (strong connections, strong materials. I could see these lasting several years). The only thing I would ask for would be a cord-clip like with the gen 1 Isurus. That was extremely helpful when you exercise or move around a lot. These headphones are meant for sitting down and gaming, but a cord-clip is still something simple to incorporate. Overall, I give these a 10/10. Great job, ThermalTake!