Acoustic Magic Voice Tracker Featuring a frequency range of 100 Hz to 11.3 kHz, the Voice Tracker I Array from Acoustic Magic is a mountable microphone suitable for recording the audio of lectures—including any question-and-answer portions thereof. It secures this objective with a proprietary "listening beam" which aims to provide automatic vocal tracking by steering the microphone's path towards the location of the person speaking. The device features steering limits selectable between 90° and 180°, as well as LDS (Location Dependent Squelch) technology to reduce background noise and bring the loudest speaker to the forefront of the recording. This version of the Voice Tracker I comes with a US power supply. Product Highlights 100 Hz to 11.3 kHz Frequency Range Automatic Vocal Tracking Selectable Steering Limits Two-Stage Noise Reduction Technology 5-Position Light Indicator In the box* Acoustic Magic Voice Tracker 6' 3.5mm Plug-and-Play Output Cable US Power Supply