RCA Microcassette Recorder - Black Automatic voice-activated record :: Automatic level control :: Three push-button cassette operation for Record, Play and Stop/Eject :: Fast Forward and Rewind function :: Two-speed record :: Built-in condenser microphone :: Built-in 36mm dynamic speaker :: External power jack (3V DC) :: 3.5mm jacks :: Battery operated ? 2 AA batteries (included)