A modularized light-guiding apparatus and manufacturing method, which may make the light of a light source proceed at least twice light reflections of predetermined directions. A part is provided with a photoelastic layer comprising a non-opaque powder coat finish that becomes optically anisotropic when stressed. The compressor, the motor, the condenser, and the power management controller are located within the housing. The golf club head may comprise more than one removable panel. The present invention outfits sports objects with electronic devices that receive and transmit position and location information obtained from the Global Positioning Satellite System, without adversely affecting the sports object’s ability to perform in a standard way.