Abstract: A wireless remote control device is provided using a mobile phone. The mobile phone's keys, touch-sensitive screen, gravity sensor, or audio controller are signal triggering means to issue instructions. A processing software is installed in the mobile phone and the instructions are processed by the processing software, delivered to a communication module via the mobile phone's port, and radiated to the remote controlled toy by the communication module, so as to control the remote controlled toy's mechanical actions and audio/lighting effects. The wireless remote control device is intelligent, functionally versatile, easily extensible, and hot pluggable. In addition, infrared transmitter is adopted that not only is accurate and robust to interference, but also produces little interference itself to the environment and the neighboring devices.