The Olympus DM-420 Digital Voice Recorder (2GB) comes supplied with a number of features that make it a solid value. First in that list of features would be the built-in 2GB flash memory. The DM-420 also comes equipped with an expansion slot for microSD/SDHC cards. The recorder can capture up to 533 hours of audio (with 2GB memory) and boasts 51 hours of battery life, along with USB charging.
Aside from long battery life and recording time, the DM-420 features a high quality built-in zoom stereo microphone and a 3.5mm jack for adding an optional external microphone. When you're ready to edit your audio the recorder comes with Olympus Sonority editing software. This easy-to-use software helps with sound editing, file and Podcast management, and is compatible with both PC and Mac. And speaking of Podcasts, you can download them automatically using the included USB. Last, but certainly not least, like most digital voice recorders on the market today, the DM-420 features voice activation.