Shockproof constructionCore technology of G-SHOCK in pursuit of toughnessProtects modules with shock-resistant constructionUnique concavo-convex shape prevents direct impact to glass and buttons;20 atmospheric pressure waterproof Can be used in a wide variety of places and situations, from everyday water work to water activities such as swimming, surfing, and jet skiing. ;EL backlight (with afterglow function)] The display surface of the watch emits light. Even if you remove your finger from the light button, the light emits for several seconds. ;Other product specificationsstopwatch/timer/multi-alarm/time signal/fully automatic calendar/12/24-hour display system switching/EL backlight (with afterglow function)/alarm/time signal/timer linked flash function (alarm/time signal/timer linked emission);Contents] Main unit, box, instruction manual, and manual are included in the instruction manual. Please note that some of the models are made exclusively for Japanese market, hence the specifications and interface language is all in Japanese and cannot be changed to a different language. If there is no stock, it may be canceled after notification. ## Voltage For electronic equipment, it is recommended to use a transformer just in case. This is because electronic equipment for Japan is designed to be used at 100V.