Abstract: A wireless mouse for inputting commands to a host computer includes a casing, a control circuit, a wireless receiver, an electronic switch circuit and a resilient member. The control circuit includes a wireless module to transmit a wireless signal to the wireless receiver. The wireless receiver can be either received in the port of the casing or attached to a connector of the host computer. The electronic switch circuit includes a control terminal, a power input terminal connected to an external power source, and a power output terminal connected to the control circuit. The input and output power terminals are electrically connected or disconnected according to electrical potential at the control terminal. The resilient member is disposed on an inner side of the port. The resilient member is electrically connected with the control terminal by insertion of the wireless receiver in order to disconnect the input and output power terminals.

Abstract: A thin type mouse includes a main body and a finger ring. The main body has a top surface and a bottom surface. The finger ring is removably attached to the top surface of the main body. The finger ring not only can prevent the user's palm from sliding off the main body, but also can force the user's palm to rest on the top surface of the main body. Therefore, the user's hand is not easily tired.

Abstract: An electronic device includes a housing and a power supply unit. The housing has a first side surface and a second side surface on opposite sides thereof and a receiving cavity defined therein, an inlet defined in the first side surface and an outlet defined in the second side surface. The receiving cavity is connected with the inlet and the outlet. The power supply unit is located in the receiving cavity, and a shape of the power supply unit corresponds to that of the receiving cavity.

Abstract: A computer mouse includes a casing, a skidding pad and a cushion member. The casing has a bottom surface and a side surface adjacent to a peripheral of the bottom surface. The skidding pad is applied on the bottom surface of the casing for sliding upon a working surface. The cushion member is formed at a corner defined between the bottom surface and the side surface of the casing. Additionally, when the computer mouse is stand still on the working surface, only the skidding pad is in contact with the working surface.

Abstract: A sound output device with an earphone mode and a speaker mode is provided. The sound output device changes a circuit resistance value of loudspeaker modules by adjusting a connecting state of the loudspeaker modules in the sound output device. Thus the sound output device is set to an output volume value of the earphone mode or of the speaker mode, so as to meet the requirements of the user, and to improve the convenience in use of the sound output device.