Provided is a transmitter that includes a channel selector for modifying
an operating frequency of a radio-controlled toy. The transmitter has a
channel selection switch that enables a user to pick a channel from a set
of predefined channels. The selected channel is then transferred to the
toy. For example, a microcontroller unit within the transmitter may be
used to detect the selected channel. The toy is placed in contact with
the transmitter and the transmitter's microcontroller unit communicates
the channel to a microcontroller unit inside the toy. The toy's
microcontroller stores the channel in a memory in the toy. The toy then
tunes to the stored frequency to receive control signals from the
transmitter.