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 direction, pet training, and personal emergencies. 2. Features 3 sound tones 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 than traditional whistles, ensuring better attention in noisy environments. 3. Built-in LED light offers illumination for outdoor use or camping. Functions as an emergency flashlight and includes SOS signal mode for distress situations, enhancing safety during outdoor activities. 4. Constructed from high-quality ABS plastic material, durable, odorless, and safe for daily use. 5. Powered by a 6F22 9V dry 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: Light reflections and display differences may cause slight variations between the product color in images and actual color. Measurement tolerance allowed is +/- 1-3 cm.