The present invention provides an anti-ESD elastic plate comprising a first conducting part, and a pair of second conducting part. Sound data is sequentially stored in association with time data and information such as a letter and a symbol is inputted with a marker with which a user writes. The eye accommodation function state measurement device includes a control section which provides a measurement suspension period in which the measurement is suspended. At least one of the flanges comprises a spring finger, which is engageable with a concave portion of the base for fixing the EMI shield on the base without using screws. In other embodiments, one or more shoulders are positioned around the periphery of the rod hole for added strength. The reference element and the sensitive element have, respectively, a first and a second magnetic anisotropy in a first and a second direction.