A36
Additional Features: dual display, desktop computer, resident videoconferencing, wireless presenting
A51
Additional Features: dual display, desktop computer, i>clicker, touch panel Zoom conferencing, room-level cameras, and audience microphones
A53
Additional Features:
dual display, rear dual display, desktop computer, i>clicker, touch panel Zoom conferencing, room-level cameras, and audience microphones.
dual display, rear dual display, desktop computer, i>clicker, touch panel Zoom conferencing, room-level cameras, and audience microphones.

136E
Additional Features: wireless presenting