Sourcingbay 3 inch Handheld 500x 5M 8 LCD Digital Video Camera Biological Microscope 4x digital zoom The 3 inch handheld 500x5M LCD digital microscope UM039 with photo/video measurement that offers a good way for you to have microscopic observation on the go. The 3" quality LCD panel brings vivid crystal image. Equipped with professional microscopic lens, it helps you to see tiny objects easily. With 250x optical and 4x digital zoom, the magnification can be up to 1000x. 800mAh rechargeable li-ion battery provides a 3.5-4 hours standalone working time. The 8 bright LEDs, with brightness adjustable, is bright enough for perfect observation. More exciting is the professional measurement software can help to measure size as small as 0.001mm, which is extremely helpful to your scientific researches. With this microscope, you can enjoy your researches anytime and anywhere. Driver free to download for Windows XP SP2/Vista/Win7/Win8 and Mac OS 10.6 ~ 10.8