AD800 is very easy to install and only powered by USB, you can use only by some seconds to install program. it use hard disk of computer to store info, it can record phone using information and record talking info. Each talking info includes starting time of talking, incoming or outgoing, incoming or outgoing numbers, talking time length and all recording process, to use 1GB HD can record 62 hours,200GB HD can record 12400 hours. 

Features:
-Incoming and outgoing recording info and searching
-Auto and manual recording
-Monitoring Real-time during talking status
-Line status display
-Phone using status display
-Talking recording from start time to stop time
-Play recording information
-Create contacts for address list management
-Provide various searching condition for unique situations
-Voice frequency selection function for playing prompt voice during recording and recording voice
-Provide polarity reversal and time control as well as condition settings for starting recording
-Auto run recording program when computer starts