This unit is outstanding and should arrive in a box with manual, DC power cord with cut on button

China is making fake units and selling through questionable dealers

The lock outs work about 70% of the time the range is as good as any on the market but its really great at finding semi's, over all its a good unit, but it needs some bugs worked out but that is the good and bad with this unit.

They are constantly improving this unit through downloadable firmware updates as well as the Speedcam, Redlightcam, and Speed Trap Database

There are other much better units for the money!