Olympus digital voice recorders offer features including an variable control voice actuator, 2 gigabytes of internal flash memory, four folders and 16 index marks. Other features include fast and slow playback options and up to 1,151 hours of recording time in long-play mode.
The variable control voice actuator allows the device to save memory and battery life by only recording when the microphone senses sound. The Olympus digital voice recorder can hold up to 200 messages in each of its four folders and there are 16 index marks available to assist in finding stored audio files. There are up to 202 hours of recording time in standard mode and 78.5 hours in high-quality mode.