In the switch mode, the user holds the switch to play. In the latch mode, the user touches the switch and the tape recorder remains activated until the switch is touched again to turn it off. This mode is useful if a child cannot sustain a hand on the switch. In the timer mode, the user sets the timer to play for a desired length of time (1-120 seconds). This mode can be used to motivate a child to want to hit the switch again to hear more. Please note: AC line cord has been removed for safety reasons. Switch shown not included