6 microphones arranged in a 360 degree array pick up voices up anywhere in rooms for up to 8 people. 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. PowerConf Bluetooth speakerphone automatically balances the sound of your voice to make up for differences in volume and distance from the speakerphone. Connect to your phone via Bluetooth or to your computer with a USB-C cable with no need to install drivers. PowerConf Bluetooth speakerphone is compatible with all popular online conferencing services. 24 Hours of Call Time. PowerConf Bluetooth speakerphone has a built-in 6, 700mAh battery to power days of calls. Integrated Anker PowerIQ technology allows you to charge other devices via PowerConf at optimized speeds.