Use : Place the bridge of the whistle on your bottom lip and make a sharp, clear sound. Use your tongue to block the passage of air quickly, after the appropriate length of signal.
Safety warning : Do not blow whistle directly in a person’s ear.
Care instructions : Occasionally wash whistle in a water/vinegar solution for best performance.
Colour : (whistle) white, (flex coil) white
Material : plastic, non corrosive brass
Dimensions : 5,2 cm x 2 cm (2 in x 0.75 in)
Weight : (whistle alone) 0.008 kg (0.018 lbs)