Omni-Directional Voice Pickup 6 microphones arranged in a 360° array pick up voices up anywhere in rooms for up to 8 people Smart Voice Enhancement A custom DSP algorithm offers real-time echo cancellation up to 70 dB de-reverberation and reduces background noise by 20db to ensure your voice is picked-up without distracting noises Optimized Clarity and Volume PowerConf Bluetooth speakerphone automatically balances the sound of your voice to make up for differences in volume and distance from the speakerphone