1.Magnification: 3X
2.Objective Lens Diameter: 22mm
3.Ocular Lens Diameter: 29mm
4.Red/Green reticle can be adjusted to 8 levels
5. Press the "+" button for 2 seconds to switch between green and red reticle
6.Automatic turn off will happen after pressing the "-" button for 2 seconds or 1 hour of non-use
7. Press the "+" or "-" button to restore the state before power off
8. lt will restore to its original state after turning on the button when replacing the battery or powe off
