The H6370 electronic whistle features a durable and effective design with a length of 12 cm, a diameter of 2 cm, and a weight of 20 grams. It comes with a lanyard for hanging on the wrist or neck and includes 4 replacement LR44 button cell batteries. The whistle provides a high sound output that surpasses traditional whistles and offers a long operating time before needing battery replacement. Additional features include an LED light, making it ideal for referees, training, and emergency alerts. Warning: Do not use the whistle near the ears to prevent hearing damage, and it is not suitable for children. Replace the batteries when the sound becomes low or fails to operate normally.

Features:

• Length: 12 cm
• Diameter: 2 cm
• Weight: 20 grams
• High sound output (louder than traditional whistles)
• LED light
• Includes 4 LR44 button cell batteries
• Lanyard for hanging
• Long operating time