Sony's TCM-150 Standard Cassette Voice Recorder offers one button recording for simplified, quick play/record operation. As you record, utilize its 25 hour battery life, LED battery level indicator, Clear Voice Recording System, Cue and review function, the Pause switch, and the Stop/Pause release function. Its 38% larger playback speaker enables improved sound, while the Built-in microphone, Automatic shut-off (at tape end), Sony-Matic® automatic recording level control, and the L/R monaural earphone jack further enhance your recording experience.