EC 2019: Nureva Features HDL300 Audio Conferencing System With True Full-Room Pickup March 21, 2019 | Home / March 21, 2019 rave-video / EC 2019: Nureva Features HDL300 Audio Conferencing System With True Full-Room Pickup EC 2019: Nureva Features HDL300 Audio Conferencing System With True Full-Room Pickup