Abstract: A remote-control device, according to the present invention, is for a camera having a light signal receiver that receives a light signal. The remote-control device includes a light signal transmitter, a position adjuster, and a switch member. The light signal transmitter transmits the light signal. The position adjuster adjusts the relative position of the light signal transmitter with respect to the camera. The switch member is connected to the light signal transmitter and commands the light signal transmitter to transmit the light signal. The switch member is movable with respect to the light signal transmitter, and the position adjuster adjusts the relative position of the light signal transmitter so that the light signal is received by the light signal receiver.

Abstract: An antibacterial deodorant cover for a microphone which includes a matrix member, such as an organic polymeric substance, and having a predetermined configuration. The matrix member carries a calcium phosphate compound having a Ca/P ratio in the range of about 1.0 to 2.0. The antibacterial deodorant cover further includes a device for fixing the matrix member to a head of the microphone.