An out-of-the-box voice pick-up device is the voice of the customer. Key Features Plug & Play (No driver required), compatible with Windows 10/8/7, Mac, Linux and Android that support OTG. Voice Pick-up device, Far-field voice pick-up up to 5m and supports 360° pick-up pattern Acoustic algorithms implemented: DOA(Direction of Arrival), AEC(Automatic Echo Cancellation), AGC(Automatic Gain Control), NS(Noice Suppression) Built-in audio jack, which allows for plugging in headphones or speakers (speaker not included) Technical Specifications XVF-3000 from XMOS 4 High Performance Digital Microphones Supports Far-field Voice Capture Speech Algorithms On-Chip 12 Programmable RGB LED Indicators Microphones: ST MP34DT01TR-M Sensitivity: -26 dBFS (Omnidirectional) Acoustic Overload Point: 120 dBSPL SNR: 63 dB Power Supply: 5V DC from Micro USB or Expansion Header Dimensions: 77mm (Diameter) 3.5mm Audio Jack Output Socket Resources Product WIki