The CellScrambler is designed to help prevent wiretapping by making your voice inaudible to anyone listening in. It is the world's first product featuring "Multiple Dynamic Phase Processing Technology", an innovated analog voice scrambling and digital key exchange technology. You and your conversation partner will hear the conversation clearly, everyone else will merely hear noise. Communicate privately. Secure unsecured land-lines, the Internet, or mobile phone networks. The ASIC chip embedded within a wired telephone recorder, mobile phone, Bluetooth headset, hands-free set, or other devices. For CellScrambler to work, it must be used on both phones in the conversation.