This is a LED binocular stereo microscope with top and bottom intensity adjustable lights. It is portable and can be taken out to field sites with its internal rechargeable battery system, or plugged in for use while charging. This microscope offers sharp clear stereo images with its three magnification levels (10X, 20X, & 40X). It comes with a built in illumination system and an AC adapter for power.charging the rechargeable batteries. This durable and reliable microscope is a perfect instrument for viewing insects, plants, rocks, stamps, coins, jewel and etc. It is an ideal microscope for hobbyists and students. This microscope is brand new in factory-sealed box. It is brand new in factory-sealed box.