The SHOUT is a handheld, pocket-size, low-cost, satellite tracker and messaging device. It is designed with ultra-low power consumption electronics drawing less than 35µA during sleep. With an internal 2.3 A-Hr rechargeable Li-Ion battery, it can automatically send a position report every hour for up to two months (about 1,600 reports). The SHOUT is equipped with an LCD and on-screen keyboards supporting transmission of free-text, canned messages and a combination of free-text and canned messages. Data are packaged in either standard or 256-bit AES encrypted format.