8 LED lights for illumination in weak light conditions, and the brightness is adjustable. Built-in 800mAh Li-ion battery, convenient for charging via micro USB interface. Handheld microscope, or use the support stand for hands-free operation. You can put the tested items on the plate for close observation. Suitable for electronic accessories/skin/textile/jewelry/insect inspection and so on. Specification: Display: 2.5 Inch LCD Display Image Sensor: 0.3M CMOS Sensor Controller: High Speed DSP Magnification: 500X Focus Range: 15mm - 40mm(Manual) LED Quantity: 8pcs LED Illumination Scope: 0 - 30000LUX Brightness Control: 3 Brightness Level Adjustable Power Supply: Built-in 5V 800mAh Li-ion Battery Charging Interface: Micro USB Video Format: AVI Photo Format: BMP/JPG e Rate: 30f/s Under 600 LUX Brightness Image Resolution: 640*480 Operation System: Win XP, Vista, Win 7 32bits&64bits Color: Black Item Size: 135 * 72 * 58mm / 5.3 * 2.8 * 2.3in Item Weight: 107g / 3.77oz Package Size: 19 * 16 * 10cm / 7.5 * 6.3 * 3.9in Package Weight: 518g / 18.28oz Package Included: microscope*1 If you have any questions about the product, please contact me, we will contact you within 24 hours and give you a satisfactory answer.