Implant devices for intravesical administration and local drug delivery. The binder is composed of two plastic sheets comprising such material as polyvinyl chloride, polyolefin, polypropylene, polyvinyl acetate or other similar plastics. In use, the tube member is directed rearward relative to the translating aircraft so that splashing of fluid onto the underside of the aircraft is substantially avoided. The power selecting circuit receives a plurality of supply voltages and supplies one of the supply voltages to the power terminal of the voltage amplifier as the operation power according to a volume level of an audio signal.