Twin sing along microphone with on/off switch. Front loading CD; LED display the number of tracks.Play/pause button to start or pause at any time. Combined master volume/ switch on/ switch off knob. Microphone volume control knob; stereo headset Jack.DC 6V jack is included (adaptor is not included).Requires 4 x C size batteries (not supplied).Up to players.For ages 3 years and over.