Tera 2 in 1 8GB USB Flash Disk Digital Audio Voice Sound Recorder Recording Devices for Meetings Conferences Lectures Classes Blue High quality digital voice recorder with USB flash disk function. One button to control the functions of voice recorder or USB disk Built-in microphone supports long distance recording No need to drive, it can be used as an USB flash disk directly Recorder Memory: 8G. Support Format: WMA. Support win98 and above. Record Max. Time: about.15 hours after full charge. Using Method: Push the button to "ON" and red light flash, it starts to record, to "OFF" or connect USB, it stops recording. After recording, connect it with the computer to play.