The VCM35 is equipped with a built-in 3-microphone array that covers a 20 ft. (6 m) radius and offers a 360° voice pickup range, making it the perfect choice for medium and large conference rooms.With Yealink Acoustic Echo Canceling and Yealink Noise Proof Technology, the VCM35 effectively reduces ambient noise, ensuring a high-quality audio experience during full-duplex calls.