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Product Description
Specifications：4.0X-420 -（56/58/60/62/64mm）
Magnification：4.0X
Wor distance: 340mm、420mm、500mm
Pupil distance specification：56/58/60/62/64mm
Field of view range：≥φ90mm
Depth of Field: ±30mm
Head circumference：600~720mm
Head load：60g
Gross weight：0.4kg
Package dimensions：220*120*100mm
Function: Can be fitted with myopia lenses
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