WiFi Microscope Portable Digital USB Magnifier with 8 LED for Children Students Engineers Item Type: WiFi Microscope Material: ABS Colour: Black Magnification: 0X-1000X Lens Structure: 2G+IR Field of View: 16° (Depending on the lens) Number of LED: 8 SMD3528 High Brightness White Lights (Brightness Adjustable) Focusing Method: Manual Adjustment Focusing Range: Approx. 0~40mm / 0-1.57in Imaging Distance: 3mm to Unlimited 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 / 0-32.81in (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: DC5V 1A Operating Current: 270mA WiFi Working Environment: For Android5.0 and above system, for IOS8.0 and above system WiFi Working Environment 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