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 features a 4.3-inch LCD screen, no need to connect to a computer. 3. 8 LED lights illuminate in low light conditions, with adjustable brightness. 4. Power supply: 18650 battery 5. Ultra-clear 2-megapixel resolution Product Name: DM4 Digital Electron Microscope Screen Size: 4.3 inch high-resolution display Sensor: High-performance optical sensor Main Control Chip: Dedicated 16-bit main control Lens Size: 1/6.5 inch Picture Resolution: VGA; 1.3M / 3M / 2M Video Resolution: VGA; 720P Data Format: JPG Focus Mode: Manual Image Format: JPG, BMP Magnification: 1000x Lighting: 8 LED lights with adjustable brightness Focusing Range: 10–40mm (capable of distant viewing) PC Resolution and Image Transmission Rate: 640x480 @ 26fps, 1280x720 @ 26fps White Balance: Automatic Exposure: Automatic Compatible Systems: Windows XP, Windows 7, Windows 8.1, Windows 10, macOS 10.5 or higher Supported Languages: English, 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: Micro-USB 2.0 Operating Temperature: -20°C to +60°C Working Humidity: 30%–85% RH Working Current: 330mA Power Consumption: 1.65W Product Dimensions: 16 x 12 x 6.5 cm Color: Black Material: ABS + Metal 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 Note: Light and different displays may cause the color of the item in the picture to vary slightly from the actual product. Measurement may vary by +/- 1-3 cm.