Just add some more info here...
dont have any photo.
I recently purchased this and I really like it.
First couple rounds with NX7 Pro was little hard because I have little shaky hand.
Over time I got used to using it and found out best arm position for less shaky... lol
It is bit slow but not that slow.
I think this is really accurate for price.
I had problem with estimating distance with my eyes, so I usually hit longer than I had to.
With this NX7 pro, I am not hitting long anymore.
because I am not that great player so I dont hit exact distance everytime but my play got way better.
Before with this device I was 25+ handicap
now I am ~20.
One thing I dont like
I think it is due to casing tolerance, dust and dirt often get stuck between lens and green casing.
I use canned compressed air(?) thing to blow dust and dirt and then wipe it with included cleaning cloth.