Features
Length : 7.3 cm
Height : 1.9 cm
Width : 2 cm
Weight : 5 grams
Units in box : 10 whistles
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Trump and Mini-Trump
Combines the powerful blast of sound of a gas fog horn, with the simplicity of a mouth horn : delivers over 100 dB with no effort.
Operates on the vibration of a plastic diaphragm, which can easily be replaced with any thin plastic film.
Hard-wearing, colourfast, nature-friendly and economical.
Virtually can't be lost, because it floats. The Mini-Trump is the more compact version.