Abstract: A dual-battery cell Bluetooth earphone set includes two earphones each including an ear hook for attaching the respective earphone to an ear of a user, a speaker and a battery cell, a control box including a control circuit board for transmitting and receiving Bluetooth signals, a power jack for the connection of a charging cable of a battery charger to charge the battery cell of each earphone and a volume control button for regulating the volume of the output of said speaker of each said earphone, and a power line electrically connecting the earphones and the control box.

Abstract: A wire organizer for use in an in-ear earphone set is disclosed to include a wire clip body made of an elastic plastic material and having a small through hole and a large through hole cut longitudinally through the wire clip body in a parallel manner, a side opening transversely cut through one sidewall of the wire clip body in communication with the small through hole, and a plurality of chamfered edges located at border areas of the wire clip body around the small through hole.

Abstract: A wire organizer for use in an in-ear earphone set is disclosed to include a wire clip body made of an elastic plastic material and having a small through hole and a large through hole cut longitudinally through the wire clip body in a parallel manner, a side opening transversely cut through one sidewall of the wire clip body in communication with the small through hole, and a plurality of chamfered edges located at border areas of the wire clip body around the small through hole.

Abstract: An earphone includes an earphone body electrically connectable to sound source means, and a rubber plug member mounted at a front coupling rod of the earphone body and including a front end part adapted for insertion into the external auditory canal of the user's ear and a rear end part shaped like a set of petals or perforated flying disc and radially outwardly extended from the rear side of the front end part.

Abstract: A bluetooth hands-free car kit includes a hands-free cell phone/PDA holder electrically connected to the internal electric circuit of a car for receiving and amplifying sound, a bluetooth adapter insertable into the hands-free cell phone/PDA holder for wireless communication with a cell phone/PDA through a bluetooth communication technique, and an audio transmitter receiver device insertable into the bluetooth adapter for receiving and transmitting audio signals. The bluetooth adapter has a pivoted clip biased by a spring member for engaging a retaining notch on one lateral side of the audio transmitter receiver device to lock the audio transmitter receiver device to the bluetooth adapter upon insertion of the audio transmitter receiver device into the bluetooth adapter.

Abstract: A fastening structure for fastening a member to the rim of the steering wheel of a motor vehicle is disclosed to include a mounting base frame, which has two mounting holes at two distal ends for the mounting of an external member and two sets of hooks bilaterally protruded from the top wall between the mounting holes, and two elastic fastening belts, which have a hook hole one each of the respective two distal ends respectively hooked on the hooks at the mounting base frame to secure the mounting base frame to the rim of the steering wheel of the motor vehicle firmly in place.

Abstract: A battery charger stand set includes a battery charger stand, which has a top receiving open chamber and an electric charging circuit module disposed at one end of the top receiving open chamber and electrically connectable to the electric power circuit of a motor vehicle, a cell phone adapter insertable into the top receiving open chamber of the battery charger stand for electrically connecting a cell phone (PDA) to the electric charging circuit module of the battery charger stand, and a bluetooth transmitter receiver device insertable into the top receiving open chamber of the battery charger stand and electrically connectable to the electric charging circuit module for communication with an external cell phone (PDA) by means of bluetooth wireless communication technology.

Abstract: A bluetooth hands-free car kit includes a hands-free cell phone/PDA holder electrically connected to the internal electric circuit of a car for receiving and amplifying sound, a bluetooth adapter insertable into the hands-free cell phone/PDA holder for wireless communication with a cell phone/PDA through a bluetooth communication technique, and an audio transmitter receiver device insertable into the bluetooth adapter for receiving and transmitting audio signals. The bluetooth adapter has a pivoted clip biased by a spring member for engaging a retaining notch on one lateral side of the audio transmitter receiver device to lock the audio transmitter receiver device to the bluetooth adapter upon insertion of the audio transmitter receiver device into the bluetooth adapter.

Abstract: A battery charger stand set includes a battery charger stand, which has a top receiving open chamber and an electric charging circuit module disposed at one end of the top receiving open chamber and electrically connectable to the electric power circuit of a motor vehicle, a cell phone adapter insertable into the top receiving open chamber of the battery charger stand for electrically connecting a cell phone (PDA) to the electric charging circuit module of the battery charger stand, and a bluetooth transmitter receiver device insertable into the top receiving open chamber of the battery charger stand and electrically connectable to the electric charging circuit module for communication with an external cell phone (PDA) by means of bluetooth wireless communication technology.

Abstract: A fastening structure for fastening a member to the rim of the steering wheel of a motor vehicle is disclosed to include a mounting base frame, which has two mounting holes at two distal ends for the mounting of an external member and two sets of hooks bilaterally protruded from the top wall between the mounting holes, and two elastic fastening belts, which have a hook hole one each of the respective two distal ends respectively hooked on the hooks at the mounting base frame to secure the mounting base frame to the rim of the steering wheel of the motor vehicle firmly in place.