-Built-in 3 high-performance omni-directional microphone -Echo cancellation and noise reduction -USB 2.0 and bluetooth -3M pickup redios -LED indicators Crystal clear sound for efficient meetings Ensure everyone experiences clear sound with 3 built-in Omnidirectional microphones within 3m radios In-room coverage for up to 5 people for small meetings USB 2.0 amp; Bluetooth Seamless Connectivity simple Plug and Play set up via USB or Bluetooth to get your meetings started quickly. Digital Signal Processing (DSP) technology Echo cancellation and noise reduction provides crystal clear sound without any echoes or distortions. LED Indicators Intuitive redgreen and blue LED indicators give you visual guidance Compatible with your platform Compatible with all leading UC platform such as ZOOM Vidyo WebEx Skype for business Go to meeting Cisco chrome-box Google hangout etc. atau barter bluetooth speaker JBL