With built-in lithium battery, can work continuously for 4 hours. 4.3 inches HD LCD display, which is convenient to observe more detailed details. 8 adjustable high brightness LED lights can work up to 100 thousand hours, which have a long service life. Dual power supply mode, lithium battery can be used for power supply or connected to power supply. Our microscope are made of high-quality materials to ensure durability and stability for long-term use. We have a wide range of microscopes, microscope cameras, microscope slides, microscope eyepiece lens, and other related products.