Exhibit | Aug. 4, 2021


This device is a family of encryption devices based on transistor technology for secure voice communications. The device could be included in a manpack for portability. Designed for the Vietnam War (and rapidly deployed), it was used well into the 1980s. The airborne version included an internal shock sensor. If the plane crashed (or sometimes even with a hard landing) the sensor triggered and reset all the keys back to zero preventing the daily key from falling into enemy hands.