Feature 1 [Zoom Microphone]: The digital voice recorder comes with auto zoom microphone system that automatically adjusts to the distance that suitable for capturing sound sources to ensure better recording results. 2 [Silent Recording]: The voice activated recorder does not have any sound, light flicker or vibrate in the whole process of recording, and can be used in special circumstances such as obtaining evidence. 3 [Simple Operation]: The operation method of the MP3 recorder is very simple, the operation steps are clear, and the recording can be quickly opened at anytime and anywhere. 4 [Saving Space]: The sound recording device will record when there is sound, and will pause automatically when there is no sound, which can effectively save storage space. 5 [Built in Timestamp]: The sound recorder has a built in clock chip to find the exact time of meetings, interviews, dialogues, etc, and after synchronizing with the computer, the recording files will be named by time.Item Type: Digital Voice RecorderMaterial: ABSRecording Format: WAVPlayback Format: MP3, WMA, WAVBuilt in Polymer Lithium Battery: 550mAh Package List1 x Digital Voice Recorder1 x Earphones1 x Charging Cable1 x User Manual