In the Medieval Period, it was carried with regular arrows in ebira (quiver) as uwazashiya, and it was shot to inform someone far by its sound as a signal for the same side or for the starting a battle.
中世は上差矢として通常の矢と共に箙に盛って携行し、合戦の始めや味方への合図を出す際にこれを放ち、音を出して遠くに伝えた。