The audio performance of CP925 is powered and enhanced with the built-in 7-microphone array for voice pickup and noise cancellation. Covering a range of 20-foot with 360° omni-direction, the phone is adequate to deliver clear and natural voice conference experience. Diving into the field of audio communication for more than 20 years, Yealink has developed a series of acoustic technology including Smart Noise Filtering, Optimal HD audio and Noise Proof Technology to eliminate all the distracting sounds. the next-generation technology, the exchange of verbal message can be more productive than ever.