Remember XFX's buzzmuffs? It seems KOSS have implemented a similar idea in their own set of vibrating headphones.
Stepping up to take a shot in boosting the audio performance that gamers are generally accustomed already is the HQ1 Vibration Stereophone from KOSS. As its name suggests, the HQ1 features vibration capability in addition to standard stereo audio imaging to achieve its key selling point.
[HardwareZone]

Could we have a battle of the buzzmuffs on our hands?