Windsor Electronic Whistle - 1 Tone

Personal safety & signaling device. Loud consistent sound every time. Referees and coaches find it easier to give verbal commands without a whistle in their mouth. Each set of "AAA" batteries produces more than 1000 blasts. Loud 105-dB whistle sound can be aimed in the exact direction intended and away from user. Hand operated instead of mouth blown for better hygiene. 4" long.