the hinge arms 40 42 and 44 can also be spring loaded once the ear bud 30 is moved to the parked position a latch mechanism 54 which is coupled to and operated by the button 34 is engaged to retain the ear bud 30 in the parked position under tension thus when the button 34 is pressed the latch mechanism 54 is activated to release the ear bud 30 and the ear bud 30 is released such that the tension of the spring or rod forces the ear bud 30 to move from the parked position to the deployed position in addition to spring loading the ear bud 30 a dampening unit can be included to control the speed at which the ear bud 30 moves from the parked position to the deployed position under tension alternatively or additionally a motor unit can be included to move the ear bud 30 from the parked position to the deployed position the motor unit is activated when the user presses the button 34 thereby causing the ear bud to be released from the parked position and then moved under the control of the motor unit from the parked position to the deployed position the motor unit can be coupled to guide arms 46 and 48 alternatively or.