Shock-resistant structure, 20 atmospheric pressure waterproofing - Core technology of G-SHOCK in pursuit of toughness - Protects modules with shock-resistant structure - Unique uneven shape prevents direct impact on glass and buttons. Can be used in a wide variety of locations and situations, from everyday water work to water activities such as swimming, surfing, and jet skiing. ;Mobile Link function] Functions can be linked with compatible cell phones via Bluetooth communication. ;Radio-controlled clock - Able to display accurate time by receiving radio waves carrying time information. Compatible with standard radio waves from Japan (both standard radio waves), the U.S., the U.K., Germany, and China. 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.