Since the m100 isn't designed for gaming I have decided to focus my testing on the music listening experience and general audio performance of this headset. To test the capabilities of this set, I used my Creative Muvo 2 MP3-player and my Creative X-Fi Extreme music. In order to get the best impression of what these headphones are capable of I listened to a lot of different types of music, right from classical to techno and rock.
To start off with I tested them with my Muvo 2. I was really surprised by the level of audio quality that these earplugs can produce, even compared to the more expensive MX500 earplugs from Sennheiser, which I normally use with my MP3-player. The sound was well balanced even though the bass has a tendency to be quite dominant. The treble was able to reproduce even the highest notes clearly and consistently. One of the things I also liked about the m100 is the definition of the treble, which sounds warm. This is in my opinion one of the difficult effects to achieve with earplugs, besides from a good bass.
The m100 headphones utilize Razer Pro|Bass which should give a feature rich and heavy bass. I found that the bass is really good for such a small set and that it has sufficient power to reproduce even techno and trance tunes. The only thing that I dislike about the bass is that even though it's quite loud it lacks a bit of definition, but I guess that is due to the sheer size limitations of an in-ear headset like the m100.
Comfort
The m100 set only weights 9 grams, including the cable! That combined with the interchangeable earplugs makes for an extremely comfortable package. The interchangeable earplugs supplied with the m100s span all the way from small to large making it easy to get the set to fit perfectly. I found that the medium sized earplugs suited me best. Because of the design the plugs stay in place even while moving around. The rubber earplugs not only cancel out any background noise they also make the earplugs stay in place under any given circumstance.