Rechargeable Battery: Say goodbye to battery replacements! Our electric blender cup features a rechargeable battery, offering multiple uses on a single charge for your on-the-go lifestyle. Stainless Steel Inner Tank: Crafted with a stainless steel inner tank and food-grade plastic outer shell, our mixing cup ensures durability and safety. The double-layer design and anti-slip silicone bottom prevent burns when handling hot liquids. Leak-Proof Design: The lid of our coffee mug boasts a sturdy rubber ring, providing leak-proof protection to prevent spills. Enjoy peace of mind knowing your beverages are secure whether you're at home, in the office, or on the move. Automatic Magnetic Stirrer: Experience unparalleled convenience with our automatic magnetic stirrer coffee mug. Effortlessly mix hot or cold drinks with a simple press of a button, making it perfect for any setting or occasion. Versatile Usage: From coffee and hot chocolate to protein shakes and more, our magnetic stirring coffee mug is ideal for various lightly mixed drinks. Whether as a personal treat or a thoughtful gift for loved ones, it's suitable for office use, travel, holidays, and beyond. Description: Introducing our innovative coffee cup with a convenient USB charging feature! Say goodbye to battery replacements as this electric blender cup comes with a rechargeable battery, perfect for those with busy lifestyles. The inner tank is crafted from stainless steel, while the outer shell is made of food-grade plastic. The anti-slip silicone bottom and double-layer design ensure safety when handling hot liquids. The leak-proof lid with a sturdy rubber ring prevents spills, making it ideal for on-the-go use. Experience unparalleled convenience with our automatic magnetic stirrer coffee mug! Whether you're at home, in the office, or traveling, this blender cup effortlessly mixes hot or cold drinks. Simply add your ingredients, press the button, and enjoy a perfectly mixed drink in no time. With one-touch operation, the auto-stir button on this coffee blender cup blends your ingredients seamlessly without any mess or splashing. Suitable for various beverages like coffee, hot chocolate, milk, protein shakes, and more. This versatile cup also makes a great gift for occasions such as Mother's Day, Christmas, or for office and travel use. Elevate your drink mixing experience with our automatic coffee cup! Item Name: Coffee Cup Material: Stainless Steel Built-in Battery: 400mAh Capacity: 350ML Charging Supply: USB Charging Features: Rechargeable, Leak-Proof Design, Automatic Size Details: L: 14cm, W: 8.8cm(Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Coffee Cup 1 x USB Charging Cable