Veho Usb Digital Microscope 400x 
suitable for KS3 +. This smart USB-powered instrument lets you zoom in (from 20 to 200x or 20 to 400x depending on model) on any object you fancy. Complete with software, so you can capture images and videos. PC and Mac compliant. Simply hold it like a pen or pop it on its stand. Has internal white LED to iluminate objects. ﾕ High speed connection with USB 2.0. ﾕ Light intensity adjustment. ﾕ Focus wheel for zoom range. ﾕ Light source from 6 white LED bulbs. ﾕ Adjustable stand. ﾕ Auto focus. ﾕ Record still image or video. From 20X to 400X Magnification (2M Pixel Resolution).