Voice Tracker I Voice Tracker III
  $279 $470
Nominal Range for meeting recording or voice control 30 ft 35 ft
Nominal range for high accuracy full vocabulary ASR 3-4 feet 4-5 feet
Frequency Response 200Hz-7,000Hz +/- 6.0 dB +/- 2.6 dB
Number of mic elements 8 8
Audio output connection 3mm mic level
Stereo
USB adapters available
3.6mm mic level
Stereo
USB adapters available
Built-in AEC No No
Mute button No No
Dimensions 18″ x 4.5″ x 1.5″ 22″ x 3.25″ x 1.5″
Power requirements 6V DC wall supply included 6V DC wall supply included
Ceiling and wall mount Built-in Included
  Buy Voice Tracker™ I Buy Voice Tracker™ III
For computers that have replaced the TRS mic in and speaker out jacks with one TRRS jack, use a TRS to TRRS adapter, or better still, a USB adapter. For Macs, a USB adapter is necessary.