08-29-2013, 10:11 PM
Hey Rick, welcome to the forum! If you look at the FAQ there are more detailed answers for your questions. This will save you time. Generally for you too receive the full affect from the masked and ultrasonic tracks you need stereo speaker that go up to 20 khz. As well as stereo headphones preferably (The new Iphone ones are great). Only listen to masked tracks on headphones and if you are able to put a speaker on either side of your head during the night while you listen that will create a better affect.
Goodluck!
Thanks
Fonzy
Goodluck!
Thanks
Fonzy