Feature

●The product features independent sound holes on both sides, ensuring that sound can be spread to both sides of the court during volleyball matches where the referee is located in the middle.
●The treble frequency of the whistle is set to 4000Hz, which is within the range of human ears sensitivity to 1000-4000Hz audio.
●The whistle comes with an adjustable nylon lanyard that can easily pass through the tail hole. The length of the lanyard is fixed by double balls, ensuring that it is secure and wont fall off.
●Made of environmentally friendly ABS resin, the whistle is both hot and cold temperature resistant, lightweight, and highly portable.
●The whistle is versatile and can be used by referees, coaches, teachers, for training, survival, emergency situations, in schools, sports, and as a giveaway item.


Description

Specification:

Item Type: Whistle
Material: ABS Resin
Size: Approx. 49 x 20 x 13mm / 1.9 x 0.8 x 0.5in
Frequency: 0-4000 Hz

Package List:

1 x Whistle

1 x Lanyard

1 x Mouthguard

1 x Storage Box