Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A hidden bargain among kid's microscopes

Requiring a USB connection and a computer to attach it to, this is very much like a webcam, except that it can do 10X, 40X and 200X. It has incident and base illumination; focus is touchy at 200X but look at the price. This video microscope is a favorite at our microscopy center open houses. When compared with the cardboard tube 'scopes they sell at toy stores, this is a gem. This allows realtime viewing, as well as image and video capture. These can be viewed on the computer, emailed etc. and comes with software. (...).