A medical technical apparatus includes an optical viewing unit including a receiver unit and a wireless footswitch device. The wireless footswitch device includes at least one switch configured to generate a control command corresponding to a performance of a function of the optical viewing unit, a transmitter unit configured to wirelessly, unidirectionally transmit data signals corresponding to the control command from the wireless footswitch device to the optical viewing unit using radio technology, a control processor, and a switching device. The switching device is configured to switch the control processor from an operating mode to a standby mode upon completion of a data transfer of the data signals from the wireless footswitch to the optical viewing unit and is also configured to switch the control processor from the standby mode to the operating mode in response to an actuation of the at least one switch for generating the control command.
