8GB 20HR Multifunctional Digital Audio Voice Recorder Dictaphone with Built-in Rechargeable Lion Battery MP3 Player New condenser microphone supports 3D sound recording and replaying Intelligent digital noise cancellation technology ensures clear sound input effect Large dimension stereo sound speaker reappears better sound source positions One key recording, easy for operation; useful A to B repeat function Can also play music, supports MP3, WMA, and WAV music formats