The Sport-Thieme Hand Whistle Touch: The popular ball whistle for referees and coaches. The Sport-Thieme Hand Whistle Touch is an innovative whistle for school and club sports. You do not need to put this whistle in your mouth to produce a clear, loud sound. The tone is generated by pressing the bellows. This makes the hand whistle very hygienic and suitable for use by multiple people. Additionally, the referee always has enough air during the game, making the whistle suitable for all sports. Product details for the hand whistle: PVC bellows, dimensions (HxØ) 12x6 cm, weight: approx. 70 g, color: red.