Abstract: The present invention provides a wireless communication method of an electronic device, wherein the electronic device includes a first radio and a second radio, a maximum bandwidth or a maximum. NSS supported by the first radio is different from a maximum bandwidth or a maximum NSS supported by the second radio. The wireless communication method includes the step of: using the first radio to communicate with another electronic device; determining if parameters of the electronic device satisfy a condition; and in response to the parameters of the electronic device satisfying the condition, enabling the second radio and using the second radio to communicate with the another electronic device, and disabling the first radio.

Abstract: A warning light device includes a light member, and a coupling device for coupling the light member to the accelerator pedal of the vehicle, to actuate the light member to generate warning light when the accelerator pedal of the vehicle is released by the drivers, in order to indicate the releasing of the accelerator pedal of the vehicle, and for allowing the following drivers to have a longer time to make responses or to take actions. A rack may be coupled to the accelerator pedal, and a gear may be rotatably engaged onto a spindle of a generator, to actuate the generator to energize the light member when the accelerator pedal is released by the drivers.