An electronic device for distorting sensitive information in one or more electromagnetic emanations from the electronic device is disclosed. The gelled liquid hydrocarbon treatment fluids are suitable for use in subterranean treatment operations, such as subterranean stimulation and sand control treatments like fracturing and gravel packing, that may be carried out in subterranean formations for the production of hydrocarbons. The information signal can be recorded on and reproduced from the data areas while a laser beam emitted from an optical pickup is applied to the data areas. A drive source has a second rotational shaft for selectively rotating the rotational member of the clutch mechanism at rotational speeds higher or lower than a preselected rotational speed. A wiper is provided and disposed on the leading edge of the cover for sweeping debris from the awning when the awning is rolled during retraction of the slider. Transducer devices are mounted within an enclosure which is bonded to the spa shell so as couple the sound vibration energy to the shell so that sound can be heard when using the spa.