How to Use: 1. Put the mobile phone microscope on the main camera of the mobile phone, and press and hold the switch to use it 2. Short press the switch to change the brightness of the light, two modes; long press for three seconds to turn on or off the light Specification: Item Type: Mobile Phone Microscope Objective Lens Magnification: 200x Instrument Magnification: 200x Eyepiece Magnification: 10x Application: All mobile phones can be clamped (adapted) Equivalent Focus Length: Approx. 40.6mm / 1.6in Exit Pupil Diameter: Approx. 1.45mm / 0.1in Optical Distortion: <4.5% Focus Distance: Approx. 0.3mm / 0.01in Number of Lenses: 4pcs in 4 groups + CPL Magnification: 200x Lens Aperture: F1.8 Lens Coating: Multilayer Material: ABS+PC Clamping Distance: The longest 12mm, the shortest 4mm Battery: Lithium battery Battery Capacity: 120mah (Battery Included) Charging Interface: USB, Type-C interface LED Brightness: 6 LED light guides, 2 levels of brightness adjustment Light On Time: 2-4 hours, flashes when the battery is exhausted Color Temperature of Lamp Beads: 6000-6500k Switch Control: Hall sensor (magnetic control) Charging Indicator: Red light is on when charging, green light is on when fully charged Charging Time: 1 hour Weight: Approx. 70g / 2.5oz Color: Black Package List: 1 x Microscope Lens (Battery Included) 1 x USB Data Cable 1 x Manual 1 x Cleaning Cloth 1 x Carry Bag