NEW DESIGN WITH HEAD BAND 
Receive a Free BACK UP wired Battery PAck 
Ideal for using with spectacles, single focal or Multi-focal 
 
SPECIFICATION 
Magnification:          2.5X, or 3.5X 
Working distance:           420mm
Depth of field:              80mm 
Field of View:                60mm
 
MORE DETAILS 
Ultra Light Weight  
Pupillary Adjustment  
Convenient 420mm Working Distance 
Large Depth of Field  
Easy Convergence Settings 
Safety Soft Touch Frame  
Large Field of View   
Head band