A screen table and tong assembly whereby a sand screen table structure adaptable to a rotary table is used to capture and suspend sand screen subsections within the well bore is further adapted to include a pair of articulated opposing manual tong assemblies. The hearing aid may be programmed to successively select in a defined sequence a parameter set that defines at least one operating characteristic of the signal processing circuit from a group of such parameter sets. The method according to the present invention can improve a multimedia data retrieval performance and solve a problem of color distortion due to a different illumination or characteristics of a device.