La description

  *2V**4V wide voltage range
  Glass lens with big aperture to get good photograph effects at night.
  Wide angle lens to get wide view of the front of vehicle. 
  3.0 Inch touch screen and simple user interface.
  *@********************and seamless recording support
  Compressed format H.**4/MPEG4 AVC, file type AVI2.0. Auto-saving is supported even 
lost power during recording. 
  Snapshot is supported with a tap on the screen, even during video recording. 
  Built in G-Sensor to keep important video automatically. 
  Comply with CE standard and no interfere with other electronic devices in the car.
  Silent operating mode to avoid disturbing the driver. 
  On-Guard mode can be activated by the shake or hit of the car, and leading to auto start 
recording even during the drivers absence.
  Low frame rate video recording, can store *4 hours recording even driver is absent. *-To 
achieve this, a low voltage protection power adapter is needed.
  Support TF Storage card maximum of *2GB.