WANJOTEC EW001 Large Volume Outdoor Training Referee Coach Electronic Whistle, Color: Black

1. Material: acrylic, electronic components
2. Features: no air blowing, one-click sound, high decibel
3. Decibel: 80-125dB
4. Battery: CR2032 button battery x 4 (battery included in delivery)
5. Nylon lanyard design, more convenient to carry
6. High decibel loudspeaker port
7. The volume can be adjusted, you can adjust it freely according to different occasions
8. Built-in 3 different voices, you can switch freely
9. One-button operation, simple and convenient
10. Product size: 15.5 x 3.5 cm