Sub-sonic tone generator

The sub-sonic tone generator was a device used by the tuar,i to emite a type of sonic sound or wave to use in whatever way they see to use it in and that the technology is used often on earth.

In 2008,when rodney and daniel had found janis secret room the tuar,i used a sub-sonic tone generator to keep the solid holographic wall open without anyone using the three sonic devices outside the labitory to open it and allowed to continue to walk into the room.(First contact)