Sounds just like a normal whistle! Squeeze it rather than blow into it for an easy to use whistle. The squistle has been developed by PE teachers to reduce the risk of transferring germs from one user to the next. This hand operated whistle''s size will reduce the risk of it getting lost. Features:
- High soft rubber.
- Can be safely passed from teacher to teacher.
- Embedded whistle blows at a referee's pitch and volume.
- Suitable for sharing/multiple users.
- Hang from a lanyard or hold in hands.
- Prevents referee's from becoming light-headed while whistle blowing.