“Precious” is a ring that can be also used as a watch, timer, calendar,thermometer or a flashlight. It is named after L.O.R. ring and the useful (precious)information (i) that provides. It uses crystal LEDs and a battery, which ischarged by solar energy. Each function is controlled by the buttons set below. Eachtime you push button “b” once it changes its main functions. For example if youpush it once it shows the time 1, twice the date 2, threetimes the temperature 3, four times the chronometer. By keeping itpushed it becomes a flashlight 4. When it is in time, date or timermode, we use buttons “a” and “c” to adjust.