Watch Full Metal Solar Silver with Bluetooth [Casio] G-Shock [] GM-B2100D-1AJF Men's

【Voltage Compatibility】 When using electrical appliances, please note that they are designed for Japanese voltage specifications (90-110V), so if you use them with a different voltage, it may cause a malfunction. 【Plug Type】 Our products use Japanese plug types (A or B type). Please use a conversion adapter if necessary. 【Important Note on Transformers and Adapters】 A transformer adjusts voltage to match your device’s requirements. A conversion adapter only changes the plug shape and does not adjust voltage. Using only a conversion adapter without a transformer may result in damage to the product. 【Liability】 We are not responsible for malfunctions or damages caused by improper use, such as operating the product without a transformer. G-SHOCK is a shock-resistant watch that has created a new concept of toughness in watches. This is a full metal model equipped with a smartphone link in the digital/analog combination "GA-2100" series, which was developed based on the concept of the first model DW-5000C. [Shock-resistant structure] G-SHOCK's core technology pursues toughness Shock-resistant structure protects the module Unique uneven shape prevents direct impact to 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. [Mobile link function] Functions can be linked with compatible mobile phones via BluetoothⓇ communication. [Other product specifications] Tough solar/Hand retraction function/World time/Stopwatch/Timer/Time alarm/Indicator display/Power saving function/Full auto calendar/12/24 hour display switching/Operation sound ON/OFF switching/Date display /Day of the week display/Double LED light