The red dot has an LED (Light Emitting Diode) 100% safe for the eyes, multi-position rheostat knob for dual (Red/Green) dot illumination and heads up display design promotes unlimited eye relief for flexible mounting. Its convertible mount is for weaver and 3/8" dovetail rails. Includes battery and mounting tools.
Specifications:

Magnification	1x
Objective	25mm
Field of View
Eye Relief	Unlimited
Dot Size
Tube Diameter
Length
Weight
Finish	Black Hardcoat Anodized
Battery	CR2032
Reticle	Red/Green Dual Illuminated Dot
Adjustment Size
Proofs
Optic Coating
Windage Elevation	Adjustable