【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.
PERFECT SIZE: Large capacity 350ml perfect for any drink. It has a large space so you can put a lot of ice in it. The size fits an adult's hand and is easy to carry.
FOOD GRADE AND INSULATION: All Onebttl tumblers are made of 18/8 (304 food grade) stainless steel, environmentally friendly and non-toxic. Keeps drinks cold for 9 hours and hot for 3 hours.
Splash-proof: The transparent lid is tightly sealed with a rubber gasket, allowing you to see what's inside. The straw-friendly mouth part can be covered with a sliding closure to prevent spills.
A "hardworking" mug: prevents ice cream from melting until the last spoonful, and keeps hot drinks hot until the last sip.
LIFETIME WARRANTY: We are committed to providing our customers with quality products and thorough customer service. If you are dissatisfied with the product you have purchased, please feel free to contact Onebttl's customer service. We will be happy to assist you.
