Customer First, Services Foremost: ROCWARE always aims at providing the best product and top service for every customer, If you have any questions about our webcam, just reach out to us and we'll be happy to resolve any issues you may face. Our average response time is 5 hrs or less. MORE IMPORTANTLY, ROCWARE can provide Remote Technical Assistance. ROCWARE Double Power Supply Solution: In the market, the power supply on a PTZ camera system is not always flawless. To counter these problems, ROCWARE introduced a USB power supply system and normal power, effectively addressing the pressure of low PC power, and avoiding power failure. So it offers loss-free transmission, associated with special ISP algorithms enabling it to capture your every moment in real-time without any glitches. Widest Lens on a PTZ Camera: The USB PTZ camera with a 2K 1080P Full-HD zoom large lens[Focal Length: f=4.7mm-46.3mm]. It offers you both a high-definition video feed as well an optical zooming capacity for the best results. That’s a 10x optical zoom, with an additional 16x digital zoom, and an almost 360° pan. RC20 has up to 40 FT of view range, 2.07 million Effective Pixels, and a capacity for a preset function of up to 255. So it can withstand just about any condition live stream or record. ROCWARE RC20 Camera is fully upgraded with a built-in ultrasonic motor (PTZ). The AC voltage of the motor is above 20KHz. ROCWARE's unique structure design helps you achieve true lossless focusing and anti-shaking function. More importantly, in order to better meet the Broadcast, Conference, Events, Church, and School requirements. ROCWARE is equipped with industry-leading driver chips, perfect solutions, and unique algorithms created through millions of tests. Fast Autofocus & Extremely adaptable: Despite the 10X generous optical zoom, ROCWARE’s mechanism maintains autofocus as you zoom, resulting in much more professional-looking footage than many PTZ systems which need to hunt again after zooming. It's WORTH mentioning that The ROCWARE RC20 is equipped with top-level HD CMOS sensors, operable in light down to 0.5 LUX (f/1.8), and produces great streaming-friendly video. Absolutely the highest-performance webcam unit in its class.