The Olympus J500 Microcassette recorder makes tracking of memos and important recordings an easy task. An indexing capability and tape counter allow enables an easy location of recordings. The three LED battery-check system provides information on the battery life. Its dual tape speeds provide up to three hours of recording time on a 90-minute tape. You can use the external earphones jack for private listening. External jacks for a microphone and external power are also provided for user convenience.