Getting Started · Using AVLS (For European model only · Recording · Listening · Erasing · About the Menu Function · Other Recording Operations · Other PlaybackHow to Use · Preparation · Recording · Playback · Editing · FM radio (ICD-PX333F only) · Menu · Computer · Software. ICD-UX512/UX513F. IC Recorder. Operating Instructions. Getting Started. Basic Operations. Other Recording Operations. Other Playback Operations. Message List LO BATT Batteries are exhausted. Replace the old batteries with new ones. IC Recorder Operating Instructions PLAY/STOP•ENTER button* The operating instructions are stored as PDF files in the built-in memory of the IC recorder. * The stereo microphone with shirt-clip and application software, Recording the playback sound of the IC recorder on external equipment Tuning in an FM radio station manually (manual scanning) (ICD-UX533F/UX534F only) Sony ICD-UX523 Manual Online: maintaining the moderate volume level (avls), Only). "AVLS" is set to "ON" when you purchase the IC recorder.