A's Head Gear

A's head gear is specially designed to be an "Anti-Chakra Tool". The head gear contains wires that A uses to nullify Jutsu by spinning his head and knocking the chakra away. Also, the head gear contains a "Horn" that is somehow connected to A himself, enabling him to sense the wind, and precisely locate any movement or changes in the air surrounding him. The wind-sensing Horn also works as a wind cannon of sorts, where he shoots a stream of wind that is destructive enough to slice through huge rocks.