Personal Pocket Safe has its own rubber-key PIN-pad, so that you can key in your own 4-to-10 passcode. Drive has military-grade encryption, safekeeping of passwords and other sensitive info and a track-covering feature that makes sure no one can trace its presence once it’s removed from a system. With patents pending in the United States and overseas, the Personal PocketSafe will be available through select retail channels starting in spring 2008. Other features include a rechargeable lithium-ion battery, made from recycled recycled materials, as well as a case crafted from recycled bamboo.”]
Source: https://gizmodo.com/personal-pocket-safe-usb-drive-so-secure-it-has-its-own-371510