Usage Tips:Item Type: Voice Activated Recorder <br>Material: ABS <br>Frequency Range: 20Hz-20KHz <br>Signal to Noise Ratio: 90dB <br>Support System: For Windows 98 ME 2K XP, for WIN7 8 10, for Linux 6.2, for OS X 10 <br>Built in Polymer Lithium Battery: 750mAh1、Portable: The voice activated recorder is card sized, thin and light, easy to carry, suitable for meetings, studies, and suitable for Windows. <br>2、Adjustable: Independent voice activated buttons, scroll wheel volume adjustment to switch tracks. AI intelligent high definition noise reduction. <br>3、Multiple Recording Modes: ADPCM recording 192Kbit, optional voice activated recording 50dB, automatic split recording, loop coverage recording. <br>4、Multifunctional: The sound recording device supports MP3, WMA, WAV playback, and supports fast forward and reverse playback. <br>5、With Recording Files: The recording files of the recorder are named by time, which is easy to find, and the charging time is about 3 hours.<div>1 x Voice&nbsp;Activated&nbsp;Recorder</div><div>1 x Headphone</div><div>1 x Manual</div><div>1 x USB Cable</div>