The Olympus LS-12 effortlessly captures better-than-CD quality Hi-Res audio up to 130dB SPL with new on-board directional stereo microphones and amplifier. Ease of use is another key feature as users can set optimal recording levels on a Mode Select Dial. For musicians features include overdub recording, Metronome and Chromatic Tuner. Better than CD quality Hi Res audio recording. Compatible with Microsoft Windows XP/ Vista/7/8/10. Mac OS X 10.4.11 10.8. Dot matrix. Built-in memory 4 GB. Recording time 52 hours. Twin speed recording. 9 recording qualities. Stereo voice recorder. Dictation and conference recording modes. Slow_fast playback. A to B repeat function. 1 folder. Built-in microphone. Built-in microphone and speaker. Integrated speaker. Can be used as an MP3 player. Storage via SD. WMA files can be transferred and played. Built-in USB connector. USB cable, microphone, . General information: Weight 488g. Size H18, W15, D7.5cm. Batteries required 1 x AA (included) . Manufacturers 2 year guarantee.