TLY Dolphin Pro Whistle
. These multi-colored pealess "dolphin-style" referee whistles are specialized sound-signaling tools favored by sports officials, lifeguards, and survival instructors, outdoor safety.
. Material : Molded out of dense, high-grade ABS plastic. This makes it highly shatterproof, lightweight, and completely non-toxic.
. Clear Extensions : The clear parts attached to the tips are cushioned mouth grips (CMG). These transparent thermoplastic extensions protect the referee's teeth and allow for a secure, hands-free grip between the teeth during long matches.
. Acoustic Power : Typically delivers a sound output between 115 dB to 130 dB. This volume pierces cleanly through heavy ambient stadium noise, roaring crowds, and severe weather environments.
. Dual-Pitch Frequency : Features a multi-chamber design that creates a distinct combination of simultaneous high-frequency tones (usually around 3.6 kHz and 4.1 kHz). This makes it instantly recognizable compared to a regular whistle.
. Pealess Design Benefits : Unlike traditional whistles that contain a small internal cork ball ("the pea"), these use advanced air channels to generate sound. This eliminates moving parts, meaning the whistle will not jam, freeze, or fail when filled with water or saliva.
. Colors : Available in multiple colors including black, orange, green, and blue.