A mobile terminal for reproducing music contents according to a keypad input and a method for reproducing a button sound of the mobile terminal are discussed. According to one aspect, the subject matter described herein includes a method for providing a home subscriber server proxy. A tank unit has tanks for storing hot water obtained as a result of heat exchange by the water heat exchangers. In addition or alternatively, the tubular member may consist of a single layer of material and be configured to be constrained within a catheter having an outer diameter of less than about 4 French for percutaneous delivery to the patent ductus arteriosus. The potting compound provides good thermal conductivity between the resistor, the bimetallic element and the surrounding air.