it is the best value entry level biological microscopes ,especially appreicated when budget is limited . All models are equipped with an intergrated X-Y mechanical stage are supplied with an Abbe  N.A. 1.25 condenser . Optional WF16X,WF20X,eyepiece enable utmost 1600X optical magnification. The built-in rechargeable batteries enable cordless operation 
magnification 40X-1600X available 
hight brightness led light source 
cordless power supply design .