The primary function is to offer directions using the GPS. The LEDs tell you which way to head with simple green arrow animations and alert you to upcoming turns by flashing a red exclamation point.

ENGADGET

He was draining 3-pointers in traffic and at one point, he scored 12 straight Nets points in the third quarter, all the while running around the court in jubilation and flashing the "3-point" symbol with his hands.

WSJ: Nets Stop the Linsanity

With around four years to go at that point, it is doubtful that red warning signals were flashing over the 2014 hosts Brazil. (Some may argue that with the test event of a Confederations Cup in 2013 the organizers had less time).

FORBES: Why The IOC Should Be Very Worried About FIFA And Brazil 2014

Bell tried to up the ante but only succeeded in flashing at a ball from Jacques Kallis and AB de Villiers held on to a spectacular diving catch at backward point.

BBC: Pietersen inspires England to win

At one point, Defence Minister Daniel Chea himself ran out into the streets to order troops to turn off flashing lights on their vehicles, saying it was adding to the panic.

BBC: Rebels close to Liberian capital