PeopleLink PVC 50WS Cascade is a portable, digital wireless conference microphone for conference and board rooms. These microphones can be easily connected to laptop/PC through USB ports. The features like echo cancellation and noise reduction suppresses unwanted background noise and echoes, for the crystal clear audio during video conferencing. Area of application: Conference room, board room Ideal Room size: 40ft by 30ft Capacity: 10 to 24 seater Shape of table: Oval or U-shaped