Everything works perfectly, the whistle reacts only need to be untwisted and insert the right batteries

It works well and is not a waste of money Thanks to the seller who got me the item quickly

Whistle once works) its money is worth it) trinket is still, I bought it, I do not know)

Reacts to whistle. Then begins to react to everything that looks like a whistle)))

(en) Product as in the description.
(ru) the goods as in the description.