Engineered Sound® Wireless System Simple, Smart, Scalable The demand for wireless microphones has grown as a result of the increasing prevalence of videoconferencing and web conferencing. Audio-Technica's Engineered Sound Wireless System is a DECT wireless system that offers simple, smart, and scalable high-quality audio. This system overcomes many challenges of conventional wireless microphones, such as frequency coordination and the limited number of simultaneous microphones. Unmatched Audio Quality Best-in-Class Battery Life Scalable Up to 96 Simultaneous Channels Simple to Install, Simple to Use Learn More Link up to 8 charging bays with just one AC adapter and Cat 5e cablehttp://www.audio-technica.com