The presently disclosed technology teaches a hair accessory for receiving and restraining a bundle of hair, a method of making the hair accessory, and methods of styling hair and instructing others to style hair using the hair accessory. The internal filter may also cooperate with an inlet passage for a charge pump. Update logic is also provided for producing an absolute real-time clock value, the update logic being arranged in response to receipt of the update value to generate an offset value derived from the relative real-time clock value and the update value, the offset value then being applied to the relative real-time clock value to produce an updated absolute real-time clock value. The second color data subjected to the smoothing processing is corrected, when the color difference is larger than the reference color difference, in such a manner that a color difference between a color represented by the second color data and the reference color is small. The stripe segments are formed of a retroreflective material. Conjugation through this position results in spectral properties that are uniformly superior to those of conjugates of spectrally similar dyes wherein attachment is at a different position.