It has a built-in memory capacity of 8GB and can record for 12 to 14 hours on a full charge. With it, you can make great recordings during meeting rooms, classrooms, presentations, and interviews. It allows you to record from a distance of 8-meters. While recording by this device, it will automatically save the recording files and stop when the battery is low. It also has an MP3 player function so you can listen to audio.