Link: http://technogog.com/review/review-of-petvitalix-dog-whistle-kit/

Quote: “If you’ve got dogs they need to be trained and there are many ways to do it and one of those is a whistle. Today for review I’ve got the PetVitalix Dog Whistle Kit which includes a tunable dog whistle and a pet id tag along with a handy lanyard so you don’t lost it. PetVitalix also includes several very useful eBooks about training your dogs with the whistles and other books about keeping them healthy and other information concerning your dogs. My dogs are rather stubborn but I’ve been trying the whistle with them and have seen some responses but I think I’ll need more time to really get them trained. The old saying ‘you can’t teach an old dog new tricks’ seems to apply for my dogs as they’re about five years old now, but they are responding so time and patience is something you’ll need to train your dogs. Read on to learn more… “