A system including a medical apparatus and at least one remote control device is provided. The medical apparatus is provided with a first transmitting-receiving device and the at least one remote control device is provided with a second transmitting-receiving device. The second transmitting-receiving device is configured to pair with the first transmitting-receiving device and to transmit at different transmitting strengths depending on an operating state of the second transmitting-receiving device with respect to the first transmitting-receiving device.