Folding Portable 8x21 Telescope Binoculars Hiking Black

Standard: 8x21   
Color: Black 
Magnification: 8×
 Objective lens diameter: 21mm
 Angle of vision: 7°    
 Exit pupil diameter: 2.6mm
Eye relief distance: 11mm
Linear field: 131m/1000m
Minimum focus distance: 2.13m
Lens material: Bk4 
Optical coating:

With roof prism
Simple operation
 Can work well at night
The objective: The FMC green membrane
The lens: The FMC blue membrane
 Prism system: Roof prism
 Focusing system: Central
Size(when folded): L92*W61*H39mm
Sze(when unfold): L92*W100*H39mm
 Net weight: 188g

Package weight: 220g