Feature:1. The tube connector is suitable for eyepiece diameter 3545mm, suitable for camera lens up to 28mm, night vision range up to 100200m.2. Used both the day and night, colored during the day, automatically switch to black and white mode at night due to insufficient light.3. Infrared flashlight light is unseen to us and animal eyes, only our night viewing monocular can see, convenient for see animal.4. A total of 3pcs 18650 lithium batteries (included) are used, large capacity and high performance.5. Infrared lights are generally auxiliary night viewing devices, the light is not shot out, but the eyes can be seen at close range.Specification:Item Type: Night Vision Scope DeviceMaterial: ABSDispaly Size: Approx. 11.6x7.5cm/4.6x3.0inFlashlight Size: Approx. 12.8x2.5cm/5.0x1.0inSleeve Size: Approx. 15x5.2cm/5.9x2.0inQuantity: 1SetStructure: MonocularFunction Type: Ordinary TelescopeMagnification: 1XObjective Lens Diameter: 16mm/0.6inEffective Viewing Distance: 0-300m/0-984.2ftDisplay: 4.3 inSuitable for observation mirror diameter: 35-45mm/1.4-1.8inCamera without switch: one modeDay and night modesNight Viewing Distance: Up to 100-200m/328.1-656.2ftUses: day and nightFlashlight Wavelength: 850NMBattery working time: 2-4 hoursInfrared Light: 150-300m/492.1-984.3ftAdapter Type: EU PlugBattery Type: 18650x3 (Included)Battery Capacity: 2200mAhMachine Debugging:1 Fix the display screen and infrared light on the optical sight with a pipe clamp.2 Loosen the plastic screws, and fix the connecting tube on the back of the eyepiece.3 Turn on the machine, turn the lens (in the tube) of the machine to adjust the focus, and adjust the crosshairs of the optical sight to make it clear.4 Adjust the position of the connecting pipe and tighten the screws until the crosshairs are in the center of the display. So far, the debugging of this machine has been completed.5 In future applications, if the image becomes blurred due to the distance of the object, the sharpness of the image should be adjusted by the side focus roller (and the parallax adjustment roller) connected to the optical sight. Do not move the camera lens, otherwise the crosshairs will be blurred..Package List:1 x Sleeve 1 x Flashlight 1 x Diaplay 1 x Adapter3 x 16850 Battery 1 x Battery Box 1 x Cloth Strap1 x Manual3 x Stand 1 x Wrench1 x ScrewNote:The adapter should be connected to the lens with a small screw, if necessary, a tape can be wound to protect the lens.Please allow 1‑2cm/0.4‑0.8in error due to manual measurement. Thanks for your understanding.