The Dragon USB headset delivers superior audio input for use with Dragon NaturallySpeaking. A noise-cancelling microphone enhances speech accuracy while the USB-enhanced digital sound ensures consistent audio quality every time. The adjustable single earphone design fits left- or right-side and lets you tune into your PC while remaining in touch with your surroundings.
Decibel for this headset is 105 DB +/- 5 DB (decibel)
For technical questions contact support by phone on 0871 6412212 or go to http://www.nuance.co.uk/support