1.  Sharp stereo erect image over a wide field of view
2.  Upright binocular head with locked-in eyepiece
    The left ocular-tube with diopter adjustment ±5dp
    The interpupillary distance is between 55-75mm
3.  Fixed objective:2X
4.  product has CE approval
5.  power supply 110V/60HZ or 220V/50HZ
6.  Each set packed in Styrofoam and in an inner box. Four sets
    in onecarton.The outer measurement is 68×31×37cm
7.  Eyepiece: WF5X, WF15X, WF20X for selection
8.  Illumination: Halogen lamp 12V/10W as Standard Accessory
    Incandescent Lamp 12V/10W. High Brightness LED Lamp as Optional