The microscope also includes a built-in LED light that provides a bright, clear image, along with a rubberized eyepiece for comfortable viewing. 

Portable LED lighted Pocket Microscope.

Runs on 3 SG3 Button Cell Batteries (Included).

Power and zoom controls (60x-75x magnification) for bright, clear images.

So lightweight you can bring it anywhere.

Measures 1.25 x 3.25 x 0.75 inches (W x H x D).