Pealess; high, shrill, penetrating tone; Mega directs sound out. You and your hunting and training partners will appreciate the use of a whistle while training and especially while hunting. For those long range blinds in the heat of hunting or field trials. Uses the Pealess Clear Competition whistle for a high, shrill, penetrating tone for the most demanding conditions. The Mega directs the sound out, not back or to the side.