www.abrivosports.com

It was good serves and delivered quickly

640 combo works well. Is a little larger than I had anticipated.

Whistle works fine.

We love the whistles. A couple of our neighbors are also now carrying the whistles we gave them. Being old I made the mistake of making two orders out of my purchases. I paid an extra $8.00 on each. Only one was sent priority mail. I received the priority mail and I called you wondering where the other one was. The rep was very nice, but he did explain the other whistles were not sent priority, thus I had no info on it. One of my $8 was not honored. Michael

I gave it 3 stars because there no instructions on how to use. Been trying and still do not have the sound I need