A method and apparatus is disclosed for producing propulsion underwater with minimal acoustical emission. These components include drug impermeable and drug permeable materials, including materials that can be used to control the rate of release of drugs from the device, and pressure sensitive adhesive compositions which are drug compatible. With respect to sharing a geographical location, the geographical location is retrieved to the first computer. First, the frequency of a horizontal sync signal is multiplied to generate an operating clock signal, wherein the horizontal sync signal is synchronized with the source image frame.