1. Complete functions, clear picture, fine workmanship, replaceable battery, can be connected to a computer, small and portable, and supports up to 12 languages. 2. The overall design uses a 4.3-inch LCD screen, no need to connect to a computer. 3. 8 LED lights are lit in low light conditions, and the brightness is adjustable. 4. Power supply: 18650 battery 5. Ultra-clear 2 megapixels Product Name: DM4 Digital Electron Microscope Screen size: 4.3 inch high screen Sensor: High-performance optical Main control chip: dedicated main control 16Bit Lens size: 1/6.5inch Picture resolution: VGA; 1.3/3/2M Video resolution: VGA; 720P Data format: JPG/ Focus Mode: Manual Operation Image format: JPG/BMP Magnification: 1000 : 8 LED lights (adjustable brightness) Focusing range: 10~40mm (see the distant view) PC resolution and image transmission rate: 640*480/26fps, 1280*720/26fps white balance automatic Exposure automatic PC : xp, win7, win8.1, win10, for OSx10.5 or higher Supported languages: 12 languages (English, Simplified Chinese, Traditional, Chinese, Portuguese, Japanese, French, German, Korean, Italian, Dutch, Russian, Spanish, Arabic) Lens structure: 2G+IR Aperture: F4.5 Lens angle of view: 16 degrees Interface and signal transmission mode: Micro-usb2.0 Operating temperature: -20Celsius ~ +60Celsius Working humidity: 30%~85%Rh Working current: 330mA Power consumption: 1.65W Product size: 16X 12X6.5cm Colour:black Material:ABS+Metal Size:16X12X6.5cm Package Contents: 1 x Microscope 1 x Bottom plate 1 x Metal rod 1 x Adjustable stand 1 x USB cable 1 x Chinese and English manual Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.