2.  Digital Rights Management  To prevent you from making copies of audio files you have downloaded on your personal media player. It also prevent from the transfer to other digital devices. This to protect the copy right holders by illegal copying.

3.  Wi-Fi  Bluetooth  Infrared  HDMI  USB

4.  Headphones  Speakers  Docking stations  Remote control  Solar power chargers BUT NOT MAIN CHARGERS

5.  Save time no need to wait to download  Less storage  Cannot keep a local copy to view offline  Limited availability for some streamed video  Experience depends on connection quality

8.  Antivirus  Locks automatically when not used for a period of time  Hard reset features allows users to delete all data from the device in the event of selling/disposing of it  Remote management and deactivation when stolen  Encrypt data to prevent other people accessing  Backup features allow users to backup data to a computer  Hide the Bluetooth and wireless sharing to stop users accessing files on the device

9.  AVI  JPEG  WMV  DOC