An interchangeable Gametenna used in conjunction with a wireless telephone to play a game. In representative embodiments, the active routing circuit includes a channel switch which includes a transceiver and a switch. The method also includes transmitting, by the second electronic device, at least one IM login information stored therein to the first electronic device if the identification information respectively recorded in the first electronic device and the second electronic device is consistent. 3 for electromagnetic energy having a wavelength of about 700 nm.