The present disclosure is directed toward an article of clothing that includes at least one two-way radio communication module able to emit and receive signals, at least one force sensor placed on the article of clothing and configured to detect a stress applied by a wearer to the force sensor, at least one annunciator configured to emit an annunciating signal, a battery, and a digital processing center configured to drive at least one radio communication module to emit a carrier signal, in response to the detection of at least one sequence of successive stresses on said force sensor. The digital processing center drives the annunciator to emit the annunciating signal following the reception of an external signal by the radio communication module or following the detection of at least one sequence of successive stresses on the force sensor.