Patent ID: 8738156

Claim:
A bra comprising a signal-activated fastener capable of receiving sound pressure generated by a clapping sound and operative to unfasten the bra when said signal-activated fastener receives the clapping sound generated by a person clapping his/her hands, wherein the signal-activated fastener comprises: (a) a sensor capable of sensing pressure waves generated by the clapping sound and operative to generate an electric signal; (b) a controller responsive to the electric signal and operative to generate a control signal; and (c) a fastener assembly comprising an actuator, said actuator comprising: (i) a ferrous component attached to a first front side of the bra; and (ii) an electromagnet attached to a second front side of the bra and magnetically coupled with the ferrous component thereby fastening the bra; wherein the electromagnet is responsive to the control signal and operative to demagnetize thereby decoupling from the ferrous component and causing the bra to unfasten.