Simple Operation- switch on your voice recorder, one button for recording. press the "REC", start the recording, press "STOP", end the recording, press PLAY, listen what you just recorded, and then Press A-B, select your important section to repeat. Easy to playback with inner powerful speaker, support external sound speaker playback, let you enjoy superior recording quality. Player Function- this voice recorder can be used as an music player, you could enjoy the music after your tired study, meeting and so on. Also can function as a detachable data storage device.you can take along your favorite pictures and documents whenever you go.Simply cut-and-paste or drag-and -drop files to or from it via USB connection, the player will appear as a removeable drive in Windows.Voice Activated Recording- automatic voice reduction function, it starts recording when sound is detected or turn to standby state, saving recording time and reduce power consumption.Clear Voice Record- high quality recording with noise redution, you will get super clear recorded voice, the sensitive microphone help you to catch speaker's words in an interview, lectures, meetings.High quality and long time uses DSP noise reduction technology to filter out environmental noise, has high-quality recording, 1536kbpsto restore the real scene. It can continuously record for more than 30 hours and play for 7 hours.