Store hours of high-quality audio with this Sony digital voice recorder. The highly sensitive S-microphone operates in either focus or wide mode to optimize sound quality depending on the event setting. This Sony digital voice recorder has 4GB of on-board memory, expandable microSD storage and USB connectivity for PC transfer and quick charging. Voice-operated recording Activates the recorder only when audible sound is present, conserving space and eliminating soundless passages. 4GB internal flash memory To store dozens of lectures or notes. Up to 159 hours of recording time For reliable recording capacity. Expandable with microSD card (not included). Organize and store your content Hold up to 5000 folders and files all together in total. Easy file management Allows you to move, erase, divide and lock audio files. Multiple playback modes Include speed control, noise cut and easy search function support. Built-in speaker For clear audio. An earphone mini jack offers private listening. Backlit LCD Displays the date and time, as well as the operating mode. PC link Transfer files quickly without searching for a USB connection cable. With direct connect, simply connect the recorder to your computer.