Bitonal Cat Whistle

It's a whistle shaped like a cat face! This was designed in the vein of an emergency whistle and can reach 120dB up close, which means it is not a toy and should not be given to small children. If you are going to test it, please first consider whether there are pets or other people around it will bother, and test it outdoors if you can. If you are going to test it a lot or use it a lot, you may want ear protection. I tested these to be 110dB up close with a moderate blow and 123dB up close with a hard blow. It's about 105 dB from about six feet away, with a hard blow, and so on. (I’m just using a phone app to test it and these things will vary by person and environment, so take this less as a guarantee and more of a ‘what to expect’.) The frequencies may differ a bit between prints due to small size differences (as well as temperature and other air conditions), but I tested the left chamber to be about 3050 Hz and the right to be about 3450 Hz. The collar is meant to serve as