Lumens DC193 Portable Document Camera, 1/3 CMOS Color Image Sensor, Full HD 1080p Output Resolution with 30fps, 20 Times Variable Zoom Ratio, Shooting Area Max. 15.7" x 11.8" The Lumens DC193 document camera has 20x zoom capability and a professional image sensor to deliver vivid colors at Full HD, 1080p output resolution with 30 fps. It transmits a streaming image smoothly in real time without delays. The internal memory stores up to 240 images and is expandable to 4TB using a USB flash drive. Key Features Full HD 1080p output resolution with 30fps 20 times variable zoom ratio VGA input/output, HDMI input/output Built-in microphone One-touch synchronous audio/video recording Compatible with USB flash drives, expandable to 4TB Jointless, highly flexible gooseneck Plug & Play and compatible with all major whiteboard brands Unique image optimization auto-tune button Innovative built-in power supply Rigid lens provides protection from abnormal operation Specifications Image Sensor: 1/3 CMOS Color Image Sensor Zoom: 20x Digital Zoom: 12x Mechanical Zoom: 10x Close-up: 2cm Shooting Area Max.: 15.7" x 11.8" Output Resolution: XGA, SXGA (1280x960), WXGA, 1080p SNR: 51dB Sharpness: MTF 937 line Frame Rate: 30fps Lamp: LED side lamp supported by gooseneck Power Supply: Internal Power Supply, 100-240VAC USB Image Transmission: USB 2.0 (480 Mbps) Image Capture: Single or continuous capturing Auto Tune: Yes, one button for optimization image Image Rotation: 0˚, 180˚, flip, mirror Anti-Theft: Kensington anti-theft lock device