The 8-channel Revolabs Fusion System w/o microphones fits the needs of any AV conference room. Add any combination of up to 8 Tabletop or Wearable Mics (sold separately). The Fusion Wireless Microphone System can be plugged into a telephone line for a great wireless audio conferencing experience. The Fusion is also compatible with all of the major video-conferencing solutions including Lifesize, Polycom, Sony and Tandberg. IR remote control included or purchase separately an RF Tabletop Wireless Dialer for greater flexibility.