It can be connected with the mobile phone and take pictures, wide field of vision, more further. Don't need to worry about taking pictures for the further scenery.
The photography distance will be increased for 30 times more than the common photography.
BAK4 prism, High refractive materials, can effectively avoid dark corners.
Suitable use in outdoor, don't need to worry losing the way, there is a for compass on the monocular.