Very small, heavy, whistles unpleasant, the main peaks in the 4 kHz, 14-17 kHz and 20-21 kHz bands. On dogs did not try, the attention of the home rat attracts, but does not scare.

Cool thing. How does it work on dogs-did not check. There was no possibility. In the whistle, the sleeve is twisted, twisting which can be slightly adjusted the tone

The goods arrived in the Republic of Belarus the city of Vitebsk in 25 days. The description corresponds, the dog hears it. Fit like half a cigarette.

Product Super worthy command. Napewno will Me served. Yours sincerely salesman. Fast shipping and delivery. Again recommend this seller.

Delivered in the specified time. Cool whistle, little one. I checked on my dog, it starts to howl :) And it's strange to behave.