Product Color: Orange, Black, Blue Material: ABS Sound: 3 tones available Size: 13.65*3.8cm Whistle Volume: 120 ~ 150 dB Package Includes: 1 x Electronic Whistle with Lanyard, 4 x CR2032 Batteries 1. Three Different Tones: This emergency whistle features 3 distinct tones (tone 1/tone 2/tone 3) selectable via a switch. 2. Long-Lasting Power: Each electronic whistle comes with 4 CR2032 batteries for immediate use and replacement. Please note: These batteries are not rechargeable. 3. Easy to Use, One-Button Operation: Compact and comfortable to hold, it even fits in a training jacket pocket. Just remember where the whistle button is! 4. Wide Application: Perfect for referees, coaches, teachers, ball games, boating, running, animal training, camping, and other outdoor activities. Small, portable, and easy to use with one hand. Batteries included. Important: Do not use the electronic whistle too close to the ears to avoid hearing damage, and avoid using it in small, enclosed spaces.