20X Optical Zoom PTZ Camera Video Conference USB 1080P Camera System Camera for Business Meeting Live Streaming 100‑240V Item Type: Video Conferencing Camera Material: ABS+optical glass Gross Weight: 2500g / 88.18oz Image Sensor: 1/2.8 inch HD CMOS sensor Effective Pixels: 2.07 million Signal System: PAL/NTSC Video Output Interface: HD Multimedia Interface/USB3.0/RJ45/CVBS Video Format: USB3.0 1080P60/50/30/25 frames, 720P 60/50/30/25 frames HD Multimedia Interface: 1080P 60/50/30/25 frames, 1080I 60/50/59.94 frames, 720P 60/50/59.94 frames, IP: 1080P 60/50/30/25 frames, 1080I 60/50 frames, 720P 60/50/30/25 frames Optical Zoom: 20x optical zoom Viewing Angle: 58.7°(W)-3.2°(T) Signal to Noise Ratio: ≥50dB Minimum Illumination: 0.1lx Gain: Manual White Balance: Auto/Indoor/Outdoor/One touch/Manual AE Control: automatic/manual Image Flip: yes Backlight Compensation: yes Noise Suppression Function (3D NR): Yes Control Protocol: For VISCA automatic pairing Control Interface: RS232/RS485 (support infrared transmission and cascade) Installation Method: formal installation / hoisting / tripod PTZ Control of PTZ: IR remote control/IP/USB/RS232/RS485 5 control methods Pan Rotation Angle: Pan rotation: ±170 degrees; Tilt rotation: -30 degrees to +90 degrees PTZ Control Speed: Pan: 0.1-100°/sec; Tilt: 0.1-60°/sec Multiple Network Protocols: Support for GB/T28181, for RTSP, for RTMP protocols; support RTMP push mode, easy to link streaming media servers (Wowza, FMS); support RTP multicast mode, support network full command VISCA control protocol. Coding Technology: H.264/H.265 Preset Positions: 255 Audio Interface: 3.5mm Line In Audio Encoding Format: AAC, MP3, G711 Audio Sampling Frequency: support 8000, 16000, 32000, 44100, 48000 Remote Control Battery: AAAx2 (delivered without battery)