There is a liquid crystal display element capable of obtaining a good display performance which is not influenced by the deterioration with the time course and the history of applied voltage. A system may include a speech recognition interface and a processor. Further, the device comprises at least one locking element firmly connected to the rotary unit for slowing down and for locking the rotary unit. Thereafter, the digital environment home information is received and processed by one of the AVCC apparatuses. Evidence of an incident may be collected and processed for use by law-enforcement officials in identifying perpetrators and may be used before a grand jury or court-of-law.