The B3000 badge has enhanced noise cancellation as well as better acoustic echo cancellation.
The badge has an array of four directional microphones; two at the top and two along the right front side. Each with their own echo canceller, reducing background noise while you speak.
The following figure shows the primary microphone of the B3000 badge and the three noise-canceling microphones.
The noise cancellation features of the B3000 badge have been designed to provide a significant improvement in speech recognition accuracy in environments with background noise.
However, with this addition of this feature, the position of the badge to the speaker should be maintained in the speech zone for the optimal speech recognition. For more information, refer to Speech Zone for B3000 Badge.