description: 1. Drive-free, plug and for play. 2. Suitable for online courses, TV videos, local videos. 3. Built-in omnidirectional sound absorption and noise reduction microphone, clear conversation. 4. Fine-tuning and light correction according to lighting conditions. 5. Multifunctional base can meet the needs of different use scenarios. 6. for Focus manually, rotate the lens left and right to adjust the sharpness. 7. Color optimization engine, automatic color compensation, skin tone adjustment function. 8. High-definition lens, with good light transmission and true color reproducibility, effectively reducing for image distortion. Product parameters: Product Size: 82x30mm / 3.23x1.18in Technical Parameters: Frame rate: 30 frames per second Indicator lights: red and green indicator lights USB cable length: 150 for cm Resolution: 1920 * 1080 Interface type: USB2.0 Built-in: microphone Focusing range: limit 20mm Drive type: plug and for play Flash control: 50HZ Sensor type: CMOS Contrast optimization engine: contrast balance Support current mainstream computers XP2, Vista, Win7, Win8, Win10 and other operating systems note: No retail packaging. Transition: 1 for cm = 10 mm = 0.39 inches Due to manual measurement, please allow 1-3mm error. Before bidding, make sure you do n'for t mind. Due to differences between monitors, the picture may not reflect the actual color of the project. The package includes: 1 USB camera