Main features of this video camera USB2.0 video output 1/2.7" HD Color CMOS 8.0 mega pixel 138 degree Fixed focus wide angle Pan: 0-340 Tilt :0~120 RS-232,RS-485,IR remote control Supports H.264 & Amazon Chime ​Tips: Press the Number(1-9) directly to call the reserved preset. Fast and Smooth PRESET+Number: To set preset position of this number. RESET+Number: To clear preset position of this number. Highlight : Fixed focus Pan Tilt Camera Sleek and intelligent design Plug & Play USB2.0 Connectivity Crystal clear HD1080P image quality Accurate, smooth and silent PTZ Movement Preset: 9 via IR remote setting (256 via RS232) 1/2.7 inch high quality, 8MP (16:9) CMOS sensor Superior quality with Full Glass Lens Material 138 °wide field of view with no video distortion Support ceiling mount, wall mount and tripod mount (Reverse mountable) 2D and 3D NR for best video quality in different lighting conditions Support Visca, Pelco-P, and Pelco-D protocol, RS232/RS485 Camera Control Compatible with most leading video conferencing software and platform