Junction Three Tone Electronic Whistle - Black
• Strong loudness, the same effect as traditional whistle.
• Handy and hygienic without blowing the whistle.
• Applicable scenes: running, fitness equipment, football, badminton, tennis, outdoor sports, other ball games, swimming
• Material: Acrylic
• Battery: 4 x CR2302 (Included)
• Size: 13.65cm x 3.8cm / 5.37" x 1.5" (Approx.)