Conference phone with four wireless microphones features Orbitlink wireless technology to make your conference calls flexible and engaging. Integrated digital mixing technology delivers unified audio to give callers on the other end a seamless experience and the impression that everyone's speaking into the same microphone. Each wireless microphone provides up to 12 hours of talk time to keep your meetings going with just a single charge. And with up to 70 hours of standby time for each microphone, there's no need to worry about losing a charge mid-meeting. Magnetic charging bays in the base keep the microphones together and ready for your next call. Central, full-duplex speakerphone in the base allows callers to speak and be heard at the same time, just as they would in a face-to-face meeting. Conference phone also features a backlit display, multiple ringtones, mute indicator, dynamic noise reduction and more.