Abstract: A multi-purpose wireless communication device. The device is in the form of an headset for wireless transmission of audio information. The device includes a connection for a U.S.B. port of a computer for wireless data communication. The device includes a case containing a circuit board, a headset, a retractable microphone, and a connection port. The circuit board includes an 8M bit memory partitioned into two 4M bit segments, and an integrated circuit control chip. The first segment of the memory is for use with the headset, and the second segment of the memory for wireless data communication when connected to a computer.

Abstract: A power supply system including an electronic equipment, a power supply apparatus for transforming an alternating current to a direct current, a first connector electrically connected to the electronic equipment, and a second connector electrically connected to the power supply apparatus, wherein the first connector is connected to the second connector. The power supply apparatus is disposed out of a case of the electronic equipment. The first connector has a first body covered by a first metal cover and includes at least one terminal base disposed therein, and at least one conductive pin is inserted into the terminal base. The second connector has a second body covered by a second metal cover and includes at least one slot disposed therein corresponding to the terminal base, and at least one conductive terminal is inserted into the slot corresponding to the conductive pin.

Abstract: A structure of the AC inlet is provided. The structure includes a main body, at least one power terminal, at least one power pin coupled with the at least one power terminal and electrically connected to a circuit board, a ground terminal for accepting a ground signal from the AC power source, and a ground pin grounded through a wire and having a first strip coupled with the ground terminal and a second strip essentially parallel with a surface of the main body. The structure is characterized in that the free end of the second strip has a notch for accommodating a bare wire end of the wire and a projecting plate inclined at an elevation angle with the second strip, and the projecting plate is pressed downwards for fastening the bare ware end.

Abstract: A power supply system including an electronic equipment, a power supply apparatus for transforming an alternating current to a direct current, a first connector electrically connected to the electronic equipment, and a second connector electrically connected to the power supply apparatus, wherein the first connector is connected to the second connector. The power supply apparatus is disposed out of a case of the electronic equipment. The first connector has a first body covered by a first metal cover and includes at least one terminal base disposed therein, and at least one conductive pin is inserted into the terminal base. The second connector has a second body covered by a second metal cover and includes at least one slot disposed therein corresponding to the terminal base, and at least one conductive terminal is inserted into the slot corresponding to the conductive pin.

Abstract: A structure of a plug-in power supply apparatus is disclosed. The power supply includes an insulating case, a circuit board and an AC inlet device. The structure of the power supply apparatus is characterized in that the power supply apparatus is detachably disposed in a receiving space of an electronic equipment, and the insulating case has at least one pair of a first conductive terminal for electrically connecting to the circuit board and the electronic equipment.