【實用娛樂app】Crazy Sound|最夯免費app-綠色工廠好玩App

The world's famous sound that adults can't hear is now available on iPhone !This is the Original Crazy Sound which can only be heard by people under 24 years old !!HOW DOES THE CRAZY SOUND WORKS ?The Crazy Sound is a mix of several Ultrasonic Sounds too high pitched for most adults to hear : after 24 years old, you (normaly - try it !!) loose the ability to hear high frequencies.This is why 95 % of people older than 24 will not hear the Crazy Sound !!And you, can you hear it ?And if you hear it ... can you bear it ?????????Have a lot of fun playing with the Crazy Sound (teachers won't hear it !!! ) , now available for iPhone on the App Store !!!!NEW ! This version also include the Xtreme Sound, specially mixed to be unhearable for people older than 20 years old !!!