This is a demonstration of Hands-Free Control™! Once enabled, Hands-Free Control™ is always listening to you in a low-power standby mode. There is no setup or voice training required! Just install and it is immediately running and fully functional. Once it hears you speak the keyword, either Siri (on the iPhone 4S or via Spire) or Voice Control is activated. It works great with headphones and bluetooth headsets!
Hands-Free Control is availoable for $2,99 in the Cydia Store.