Record and play cassette tapes and enjoy nostalgic sound sources. Monaural voice; 2 power sources that can be used with household outlets or batteries. Built-in semi-auto-stop function that automatically raises when the tape is finished during recording or playing. Built-in recording microphone. Includes FM rod antenna. 3.5 mm diameter speaker. Compatible with AM/FM radio, wide FM (FM supplementary broadcasting). Includes a 0.1 inch (3.5 mm) mini earphone terminal (mono audio output).