Final answer:
George is wearing a wireless mic on his forehead besides the radio in his ear, which is commonly used in productions for clear voice amplification.
Step-by-step explanation:
Besides the radio in his ear, George is also wearing a wireless mic on his forehead. This type of microphone is typically used in theatrical productions or film to amplify an actor's voice while allowing them to move freely without the constraints of a wired microphone. The information provided about the actor smiling, while interesting, does not pertain to the specific question about George's attire.