7x to 108x magnification range. Optical Zoom 7x to 27x. Digital Zoom 4x. Four white LEDs with adjustable brightness for object illumination. 5 Image Effect modes: Normal, Gray, Inverse, Emboss, and Dual Window View. Dual Window View simultaneously displays the magnified image next to the original image. Real-time imaging on your PC screen via USB. interface and included software. Includes microscope stand for hands-free viewing. Dimensions 4.7 x 2.2 x 0.8 in. (120 x 56 x 20mm). Weight 2.5oz (70g) without batteries. Complete with stand, three AAA Ni-MH rechargeable batteries, 100 to 240VAC (50/60Hz) adaptor/charger, Windows compatible PC software with mini USB cable, cleaning cloth, and wrist strap.