Sony TCM-400DV Pressman Portable Cassette Recorder TCM400DV Double Recording Time gives you the option of recording on a standard cassette at either normal speed or half the normal speed, for extended dictation or recording sessions Voice Operated Recording (VOR) activates the recorder only when audible sound is present, conserving tape and eliminating soundless passages Long Battery Life - 20 hours Playback Speed Control lets you adjust playing speed as much as +30% or -15% for easier review of recorded information Battery Indicator With Alert LED confirms battery operation and alerts you of low battery power with flashing LED Built-In Flat Mic provides convenient recording versatility in various situations Microphone Jack allows connection of an external microphone Clear Voice Recording System enhances voice quality during recording and playback, for greater clarity 3-Digit Tape Counter makes it easy to find a specific location on the tape, for rapid access and editing One Touch Recording for simplified, quick play/record operation Cue And Review function provides sound during fast Forward and Rewind modes to help find specific passages Sony-Matic® Automatic Recording Level Control uses advanced circuitry to ensure correct recording level 3V DC-In Jack for 2-way operation using replaceable batteries or with optional AC adaptor Monaural Earphone Jack provide sound in both ears when using with an optional stereo headset Hinged Battery Lid helps prevent accidental loss when changing batteries Tape Recorder