JUST IN CASEThe SHARX features a 4-resonator body that emits an unbelievably powerful 120db dual-frequency signal. A true outdoor whistle, the ABS plastic body is co-molded with rubber inserts for grip and comfort during use. FEATURESBe Heard-a- 120dB sigl is audible for milesFail-safe-a- Pea-less design works in all conditions - won't freeze or stick to lips when coldIntense Howl-a- 4-resotor body with dual frequency tone produces piercing sound with minimal effortRugged and Waterproof-a- Made from unbreakable ABS plastic with co-molded rubber for grip