POMPANO BEACH, Fla. -

It took 18 seconds for an armed man to rob a cell phone store in Pompano Beach.

The robbery happened at the Metro PCS store at 317 E. Copans Road on Feb. 1, according to the Broward Sheriff's Office.

Video showed the man walk into the store, run up to the counter, and say "Give me all the f****** money" to the clerk. The clerk laughs until the robber pulls out a handgun and repeats himself.

The robber leaves 18 seconds later with some cash.

The robber is described as 5 feet 6 inches tall and 120 pounds.

Anyone with information about the robbery should call BSO at 954-321-4270.