Abstract: The present invention relates to an integrated battery seat of a mobile telephone, having the functions of a digital camera and a digital recorder. The battery seat includes the original structure thereof, and further includes a retractable lens telescopic base, a control circuit board mounted in the inner portion of the battery seat, digital recorder/camera functional buttons mounted on the two sides of the battery seat, and a computer interface socket.

Abstract: The present invention relates to a battery back cover structure of a mobile telephone having a function of a hand-free receiver, wherein the battery box of the mobile telephone is changed to have the function of a hand-free receiver. The battery box is designed to consist of a battery back cover containing a control circuit board, a horn and a microphone, and a cartridge that may be inserted into the battery back cover. The cartridge is provided with a signal connector that may be inserted into the insertion hole of the mobile telephone body. The cartridge may be pulled outward and rotated to be inserted into the mobile telephone body, such that the signal from the mobile telephone body can be transferred to the cartridge, and then through the cartridge to the control circuit board of the battery back cover, thereby providing the function of a hand-free receiver.

Abstract: The present invention relates to a mobile telephone hand-free receiver, wherein the battery box of the mobile telephone is changed to have the function of a hand-free receiver. The battery box consists of a battery back cover including a control circuit board, a horn, and a microphone, and a lower base snapped on the lower portion of the battery back cover. The lower base is formed with a connector that can be inserted into the insertion hole of the bottom of the mobile telephone body for supplying the signal of the mobile telephone body to the lower base and to the hand-free receiver control circuit board, thereby forming a battery back cover having a function of a hand-free receiver.

Abstract: The present invention relates to a multifunctional battery box of a mobile telephone, especially to a battery box of a wireless mobile telephone, which includes a function of a hand-free receiver, a MP3 propagation function, a FM audio receiving function, a digital recording function, and a dialogue function, so that the mobile telephone is integrated to have utility functions. The residual space in the battery box is installed with a control circuit board including a microprocessor, a FM modulator, a digital audio processor, and a memory. The surface of the battery box is mounted with a push button set, a horn, a microphone, a USB receptacle (or RS232 receptacle), an earphone seat, and a memory expansion insertion slot, thereby forming a multifunctional battery box of a mobile telephone.

Abstract: An assembling structure for capacitor microphone, in which an insertion seat is inserted on the circuit board and formed with two lateral through holes for respectively receiving two sleeves. The sleeve is disposed with two stopper sections on two sides, whereby when the sleeve is fitted in the through hole, the stopper sections serve to provide a stopping and locating effect so as to prevent the sleeve from rotating and loosening. The insertion pins of the capacitor microphone are tightly inserted in the sleeves. The assembling procedure of the microphone and the insertion seat can be automatically performed by a machine. The conducting ring in the restricting ring of the conducting plate is attached to the ring-shaped circuit formed by the fieldistor in the pad member to form a full electrical signal connection.