InfoComm 2018: Nureva Demos Its HDL300 Audio Conferencing System Dual HDL300 System June 8, 2018 | Home / June 8, 2018 rave-video / InfoComm 2018: Nureva Demos Its HDL300 Audio Conferencing System Dual HDL300 System InfoComm 2018: Nureva Demos Its HDL300 Audio Conferencing System Dual HDL300 System