.Automatic shut-off if the device has not been used for approx. 3 minutes to ensure low power consumption.Dimensions: 174 mm x 90.3 mm x 40.1 mm, Weight 220 g.Battery run time: approx. 2.5 hours, charging [...] over basic properties Magnification3 – 15 xField of view/Visual field/Field of vision (horizontal)35 mmDisplay TechnologyTFT-LCD, reflexionsfreiScreen size/diagonal in cm12.7 cmScreen size/diagonal in Inch5 [...] Inch5 "Screen resolution800 x 480pxScreen lightnessyes (multistage)Lighting image tray/support2 LEDs (glare-free),brightness adjustable (per LED),lighting can be switched offCamera - typeSF/DOF fixed focusCamera