Sound is warm and beautiful

Very nice sound

Both of them have a mellower sound than a tin or nickel whistle, but no less loud

The 1st octave is a very good sound (rough and bulging), but the 2 octave needs to blow extremely strongly, and the sound also becomes violent

They have a great sound and are nice

They look nice and have a nice sound

The second octave gives only hysterical sound

They have a nice sound!!

My tuning did not match any of theirs unless I used so little air that the sound was almost inaudible

The 1st octave is a very good sound (rough and bulging), but the 2 octave needs to blow extremely strongly, and the sound also becomes violent

It's obviously a cheap construction but it doesn't matter as the sound is absolutely not cheap to the ear.

but I can make beautiful sounds on this set

I really like the sound of the D whistle.

Overall the sound is almost like a hybrid of a traditional whistle and a recorder, and gladly it doesn't sound exactly like a recorder

Amazing sound.

Great sound

If the C whistle were as good as the D, I would have given 5 stars