Although a little different, we developed the pet CDs & MP3s because we actually had a lot of people ask us to create music for pets. The primary role for these recordings is to calm the animal, and just like humans, relaxing music is a great way to do this for pets too! These CDs can be used with any type of animal, including dogs, cats, birds, mice, guinea pigs etc. - it does not really matter as the music will be heard and have a calming effect. The audio has also been embedded with our patented Neurosonic Frequencies - a special brainwave entrainment frequuency which works equally as well on animals as it does people.