LK518 4K Desktop Document HD Webcam with Microphone USB Live Streaming Visualizer Autofocus Web Camera for Teaching Office

【4K Ultra HD Resolution】Captures stunning 4K ultra-clear images at 3840×3104 resolution with professional-grade clarity for detailed documentation and streaming. 【One-Click Autofocus System】Advanced autofocus technology with double automatic locking focus ensures sharp, stable images from 20mm to infinity distance. 【Three-Level LED Fill Light】Touch-controlled three-level LED lighting with adaptive brightness adjustment eliminates shadows and provides optimal illumination in any environment. 【HD Noise Cancelling Microphone】Built-in high-definition noise reduction microphone supports long-distance audio pickup for clear voice transmission during live streaming and recording. 【Five-Level Exposure Control】Professional five-level exposure adjustment ensures clear imaging even in low-light conditions with precise brightness control. 【Touch Control Base】Integrated touch-sensitive control panel with physical switches for easy operation of focus modes, image zoom, flip functions, and brightness adjustment. Specifications: Model: LK518 Resolution: 3840×3104, 3840×2160, 3264×2448, 2592×1944, 2048×1536, 1920×1080, 1600×1200, 1280×720, 1024×768, 640×480 Image Sensor: 1/3.06 inch Pixel Size: 1.12μm × 1.12μm Total Pixels: 12 million Frame Rate: 15-30 FPS Viewing Angle: 78 degrees Focus Distance: 20mm - ∞ Interface: USB 2.0 Cable Length: 1.5m Digital Zoom: Supported Touch Control: Yes LED Fill Light: Three-level adjustment Exposure Control: Five-level adjustment Operating System: Windows XP/7/10, Linux 2.6.20+ Power Source: USB powered (no battery required)