Banggood

This looks like a proper made quality product. Loud enough that you will not want to use it indoors! (Even in a gym for volleyball or basketball). Would be great for outdoor sports like Football or Soccer. Alternate sounds are neat, but not very usable.

Fantastic electronic whistle, EXTREMELY loud! It is so loud if may even disable an aggressor (and likely a bear too). Pack some earplugs with it because using it hurts. Excellent from a B.O.B. or survival kit. Highly recommended, well worth the price.

Sehr zufrieden sehr laut benutzte es für Fussball innen und aussen

Good quality and EXTREMELY loud whistle. Very easy to use. High recommended.

produit de Bonne qualité. son très fort. 3 mélodies. je recommande.

good but whistle sound is different from fox 40 whistle

nice staff and nice quality

iyi

good... very strong sound

Ottimo prodotto, spedizione ok