HASTHIP Whistle for Sports Coach with Lanyard, Professioinal Sports Whistles Squeeze Whistle  (Yellow, Pack of 2)

COMPACT AND PORTABLE: 2.75*2*0.6cm in size, also with a metal keychain, you can hang it on any hook, or carry it with.COMING WITH LANDYARD: Free your hand, whistle comes with a black lanyard. Adjust the gold bead to control the length of the lanyard for your convenience.PREMIUM DURABIITY: The whistle is made of premium anti-impact ABS plastic, lightweight and durable.WIDE APPLICATIONS: These whistles are great for referees, coaches, training, teachers, survival, emergency, school, gym, etc.120 HIGH DECIBEL: Crisp and loud whistle. No like traditional whistle with built in vibreating core. This high pitch whistle makes crisp sound and high pitch tone through the air viberation thanks to the air vents on the 2 side design. No matter indoor or ourdoor use, the whistle can be heard by people.