Dear Sir/Madam, Type:Video Conference System Function:VIDEO Simultaneous Interpretation:No Warranty:3 years HD:1080P/60 Low latency:Less than 200ms Low bandwidth:Ultra-low bandwidth, 1M for 1080P HD Conference limited capacity:one machine 16 users, can be seamlessly upgraded to 120 user Support:H.264 (highest: High profile) Operating voltage:100VAC ~ 240VAC Operating frequency:50Hz ~ 60Hz Show More