OutIn Travel Outdoor Insulated Coffee Cup with Flip 350ml Stainless Steel Hot Cold Compatible Tumbler, Leak-Proof Lid, Mug, &

【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. 【Optimal Temperature Retention】: Features a double-wall vacuum insulation structure to maintain the optimal temperature of your drinks. Hot drinks stay at approximately 44°C for up to 6 hours, starting from an initial 95.5°C. Cold drinks stay refreshingly cold for up to 12 hours. [Pure Flavor, Zero Metallic Odor] The high-quality 316L stainless steel interior eliminates metallic tastes and unpleasant odors. You can enjoy coffee and tea without compromising their original flavor, just as if you were drinking from a glass tumbler. [Your ultimate travel companion] The ultimate travel coffee tumbler to make your trips and outings more comfortable. With its lightweight body and easy-to-carry design featuring a braided strap, you can easily take it anywhere. 【Spill-Free Design】 No need to worry even if you put it directly into your bag. With an advanced leak-proof design featuring a secure sealed structure and a splash-proof flip lid, your drinks won't spill while you're on the go, keeping it clean at all times. [A Gift Combining Durability and Style] The 316L stainless steel interior is durable enough for everyday use, ensuring peace of mind. Its sophisticated design makes it the ideal gift for any coffee lover. OutIn Travel Tumbler, Outdoor Insulated Coffee Cup with Leak-Proof Flip Lid, 350ml Stainless Steel Mug, Hot & Cold Compatible