As we are a Japanese shop, please take the following precautions when purchasing certain products. [Precautions when using electrical appliances] When using electrical appliances, please note that the voltage is different from that in Japan and may cause malfunctions. The plug type is Japanese type (A or B type), so please check the voltage before using a transformer. Please note that a transformer is different from a conversion adapter. We are not responsible for malfunctions caused by use without a transformer. G-SHOCK is a shock-resistant watch that has created a new concept of toughness in watches. The Sound Wave series uses a thin, sporty analog needle and digital display GA-2200, and has a coloring inspired by the sound of a dance hall. [Shock-resistant structure] G-SHOCK's core technology pursues toughness / Protects the module with a shock-resistant structure / Unique uneven shape prevents direct impact to the glass and buttons [20 ATM Water Resistant] Can be used in a variety of places and situations, from daily water work to water activities such as swimming, surfing, and jet skiing. [LED light/backlight] A light emitting diode is used to illuminate the display surface, and a high brightness type light emitting diode is used as the light source. This is a combination type watch, with the display surfaces of the digital and analog sections emitting light. When you tilt the watch, the display surface lights up, automatically turns on in dark places, and turns off in bright places. [Other product specifications] Hand retraction function/Stopwatch/Timer/Full auto calendar/12/24 hour display switching