Carson eFlex 75x/300x Effective Magnification (Based on a 21" monitor) LED Lighted USB Digital Microscope with Flexible Stand and Base (MM-840) , White Description The eFlex (MM-840) from Carson is a powerful digital microscope that displays the magnified image right on your computer screen. The impressive 75x/300x effective magnification (based on a 21" monitor) allows users to see details of ordinary objects that you never knew existed! Capture an image or take close focus video with the click of a button. The included flexible neck stand (8.5 inches at tallest point) with suction cup adapter attaches to any smooth surface or to the included graduated base with ease. The graduated base shows measurements in inches and centimeters. The eFlex contains an adjustable LED lighting knob that controls the brightness of the 4 LED lights included in the device. There is also a focusing knob to ensure the sharpest and clearest images possible. The eFlex is compatible with Windows 10, 8/8.1, 7 (32/64 bit), Vista (32/64 bit), XP SP2+ and all MAC operating systems. USB 2.0 or 3.0 port is required for compatibility with your computer. The eFlex is powered by the USB port of your computer so no batteries are needed. The magnification will increase with larger monitors. The eFlex is backed by Carson. Please note, the effective magnification is a combination of the optical system and a high powered digital zoom. Features: Powerful USB Digital Microscope with 75x/300x Effective Magnification (Based on a 21'' monitor)| Contains Adjustable LED Lighting Knob and Focus Knob | USB 2.0 or 3.0 Port Required The included flexible neck stand with suction cup adapter attaches to any smooth surface or the included graduated base with ease | Microscope Dimensions: 1.25 inch (L) x 1.1 inch (W) x 3.45 inch (H) Capture an image or close-focus video with the click of a button | No batteries required Compatible with Windows 10, 8/8.1, 7 (32/64 bit), Vista (32/64 bit), XP SP2+ along with all MAC operating systems. Product Details: Light Source Type: LED Model Name: eFlex™ Color: White Product Dimensions: 1.25"L x 1.1"W x 3.45"H Real Angle of View: 10 Magnification Maximum: 300 x Item Weight: 0.19 Pounds Voltage: 220 Volts Brand: Carson Objective Lens Description: Achromatic Product Dimensions: 8.3 x 5.5 x 7.2 inches Item Weight: 2.96 ounces Item model number: MM-840 Batteries: 1 Lithium Ion batteries required. Is Discontinued By Manufacturer: No Date First Available: December 8, 2014 Department: "" Manufacturer: Carson Optical, Inc Country of Origin: China