Description
Shouting exhausts you and dies within a few hundred metres; the Screech’s twin chambers push 110 decibels of piercing tone over a kilometre with one easy breath. No pea means nothing to freeze, jam or waterlog, so it works exactly as well after a river swim. The international distress pattern of three blasts is printed right on the side.
Beatriz C. (verified owner) –
Painfully loud. Clipped to every zip pull in the family now.