A multi-purpose container is comprised of a U-shape body adapted respectively at both sides a see-through panel leveled at its bottom edge and a flushed top forming an opening to firmly erect the container as a holder, and may further contains liquid or solid contents when adapted with an upper lid. The extruder has a screw disposed within a sleeve, a plunger located on the screw and inside the sleeve, a handle located on the screw and outside of the sleeve, and a perforated disk opposite the insertion of the screw into the sleeve. Herein, a bonded surface of the piezoelectric element to the driving friction member is included in a bonded surface of the driving friction member to the piezoelectric element. The capacitor accumulates charges in response to power being received. The first control signal is received by the GPS module through the control module so as to generate first coordinates; the first coordinates are then stored in the memory. A buried oxide layer may be formed at the upper surface and another buried oxide layer may be formed at the lower surface.