Electronic Whistle 1. The electronic button whistle helps avoid mouth contact, making it ideal for referees, coaches, P.E. teachers, military personnel, outdoor camping, sports events, traffic control, pet training, and personal emergencies. 2. Features 3 sound tones and 3 volume levels to meet various needs. High-output design delivers up to 120-150 decibels, providing a louder, stronger, and more consistent sound than traditional whistles, ensuring better audibility. 3. Built-in LED light offers illumination for outdoor use or camping. Functions as an emergency flashlight and includes SOS signal mode for use in distress situations. 4. Constructed from high-quality ABS plastic material, durable, odorless, and safe. 5. Powered by a 6F22 9V dry battery (battery not included), designed for extended usage. Power supply: 6F22 9V dry battery (battery not included) Color: Black + Blue Material: Plastic Package Contents: 1 x Electronic Whistle Note: Items shown in the image other than the whistle are not included. Note: Lighting effects and display settings may cause slight color differences between the image and the actual item. Measurement may vary by +/- 1-3 cm.