Bith Vehicle Voice Lock
this device was used to secure a ground-based vehicle against theft and break-in. Essentially a computer module and locking system, the BiVVoL tied directly into the vehicle's control computer and provided voice-recognition access.The vehicle owner then recorded a coded command sequence which would allow access to the vehicle, and repeated it each time they returned. Most thieves were unable to break this form of lock, as it required an exact match of the owner's command code, vocal tones, and pitch elements.