A control method suitable for a mobile device comprising a camera includes operations as follows: obtaining a description of a first wireless device adjacent to the mobile device through a wireless communication packet; capturing a first image of a physical environment by the camera; recognizing a first candidate object within the first image; matching the first candidate object with the description of the first wireless device; and in response to that the first candidate object matches with the description of the first wireless device and a first predetermined instruction is received, generating a first command according to the description of the first wireless device, wherein the first command is to be transmitted to the first wireless device over a wireless communication for manipulating the first wireless device.