circuit board a battery connected to the printed circuit board electrical circuitry connected to the printed circuit board a motion sensitive switch connected to the printed circuit board electrical output devices such as light emitting diodes connected to the printed circuit board and electrical circuits all providing means whereby the motion sensitive switch causes a signal to be transmitted to the output device when movement is sensed by the switch the device is small enough to be used in wearing apparel and can provide safety vis u00e0 vis increased visibility for the user application_number US 28867402 A description a novel motion sensitive switch and electrical circuitry are described in the following description for the purposes of explanation specific component arrangements and constructions and other details are set forth in order to provide a more thorough understanding of the present invention it will be apparent to those skilled in the art however that the present invention may be practiced without these specific details in other instances well known manufacturing methods and structures have not been described in detail so as to refrain from obscuring the present invention unnecessarily referring first to fig1 the invention comprises several basic components including a motion sensor switch housing 10 a power source 30 electrical circuitry generally printed on a circuit board 36 and output device s 50 that generally comprise one or more illumination devices such as light emitting diodes additionally the motion sensor switch housing 10 power source 30 and electrical.