What is the key sound technique?

aneros_user113188,
Please read the thread Should I buy the KSMO CD. Here are a couple of more threads to whet your appetite -> Key Sound Orgasm and Super O & KSMO questions
Many of your fellow members have found the teachings of the KSMO protocol helpful in their Aneros journey. Please honor Jack Johnston by purchasing his program and not by obtaining a pirated version, Jack will provide you invaluable insights and information in his personally hosted chat sessions.
Good Vibes to You !

KSMO uses sound, your sound, through sort of a sighing chanting to amplify arousal. It helped me on my journey immensely. You should browse the forum. It also helps with breathing technique and relaxing.

Here is another link to the KSMO discussion: Read anything Mog writes. He's a legend over there:"Curious about Key Sound"