BUT: as already in the reviews already dissolved in !!! 2nd !!! times open the eye cup (decrease in shield), easily the monocular. After 4-5ten the visor remove the eye cup was almost entirely removed. At this time, I had just 30 minutes tested the device, without external use.
The processing is therefore very poor and the water resistance is doubtful in this state. The monocular therefore went straight back to Amazon.