1. A remote controller, comprising: a position detector, forming a part of the remote controller, that detects a spatial orientation of the remote controller relative to horizontal and vertical; a microphone, forming a part of the remote controller, for receipt of voice information; a transmitter, forming a part of the remote controller, configured to transmit the voice information or a message derived therefrom as a remote controller command; and a controlled switch, forming a part of the remote controller, configured to activate and deactivate at least one of the microphone and the transmitter based upon the spatial orientation of the remote controller relative to horizontal and vertical as detected by the position detector to thereby activate or deactivate a voice mode of operation of the remote controller, wherein the transmitter transmits a command in response to a specified spatial orientation with respect to horizontal and vertical of the remote controller as detected by the position detector.