Electronic Whistle The electronic button whistle helps avoid mouth contact, making it ideal for referees, coaches, P.E. teachers, outdoor camping, sports events, traffic management, pet training, and emergency situations. Features 3 sound modes and 3 volume levels to suit various needs. High-output design delivers up to 120-150 decibels, providing a louder, stronger, and more consistent sound compared to traditional whistles. Built-in LED light serves as a flashlight for outdoor use and includes an SOS function for emergency signaling during camping or outdoor activities. Constructed from high-quality ABS plastic material, durable, odorless, and safe for daily use. Powered by a 6F22 9V dry battery (not included). Long battery life ensures reliable performance. Power supply: Dry battery (battery model: 6F22 9V) – battery not included Color: Black + Blue Material: Plastic Package Contents: 1 x Electronic Whistle Note: Other items not included. Due to lighting and display differences, actual color may vary slightly from the image. Measurement may vary by +/- 1-3 cm.