HEAD MOUNTED NIGHT VISION MONOCULAR FOR DUMMIES

How can I concentrate whilst using the Prowl? The Prowl has 2 concentration controls, a diopter as well as a wheel with the front on the unit. Use the focus wheel at the front to provide the display screen into target and utilize the diopter that can help your eye see it as Evidently as feasible. You may also desire to make use of the diopter in or