iOptron Handheld Digital Microscope with 300K Camera, USB 2.0, 8 LED Ring Illuminator, 10x to 200x Manual Zoom / Manual Focus 2.0 USB-powered handheld digital microscope with 10x to 200x magnification Built-in 300k digital camera with 8 LED ring illuminator (with up to 2MP imaging) Use the included software to capture images or video of your discoveries Also measure your specimens with built-in measurement tools Works with Windows 7/8, Vista, XP, and MAC OS 10 or higher