Digital Microscope 0X‑1000X Magnification Handheld WiFi Computer Compatible Portable Tool Item Type: Digital Microscope Material: ABS Colour: Black + Silver + Transparent Product Magnification: 0X-1000X Lens Structure: 2G+IR View Field: 16° (depending on the lens) Number of LEDs: 8pcs SMD3528 high brightness white light (adjustable brightness) Focusing Method and Focusing Range: Manual adjustment, approx. 0 ~ 40mm / 0 ~ 1.57in Imaging Distance: Approx. 3mm / 0.12in to infinite.  Sensor Size: 1/7.5in Signal to Noise Ratio: 45db Sensitivity: 3V / lx sec Video Recording Format: MP4 Video Resolution: 960 x 540, 640 x 480 Shooting Picture Format: JPG Working Range: Approx. 0 ~ 10m / 0 ~ 32.81ft (open scene, occluded scene will affect the working range) Working Time: ≥90 minutes (full power state, battery life also affects working time) Battery: 18650 lithium battery (with built in battery) Capacity: 650mAh (capacity of a single battery) Charging Requirements: DC 5V 1A Operating Current: ~270mA WiFi Working Environment: For Android 5.0 and above system, for IOS 8.0 and above system. WiFi Working Environment and Supporting Equipment Requirements: Support 2.4Ghz (8201.11b/g/n) wireless data transmission equipment. Working Temperature: 0℃ - 40℃ Storage Temperature: -10℃ - 60℃ Working Humidity: 30-60%RH Storage Humidity: 10-80%RH