Micro slide viewer, cost effective giving super quality images, No power requirement and very light weight, Easy to use and teacher can be sure that the entire class will see the key features quickly
Microscope BA310EB Binocular, Elite series provides superior image clarity and contrast, features binocular head, CCIS EC plan achromat objectives, rackless stage, and 3W LED illumination, Widefield high eyepoint eyepiece N-WF10X/20mm, Power supply: 100-240V