- Premium Stainless Steel Construction: Crafted with a durable stainless steel inner lining, this cup ensures food-grade safety and longevity, enhanced by a double-wall vacuum design for optimal insulation. - Superior Insulation: Enjoy your drinks at the perfect temperature for 6-12 hours. The expertly designed leak-proof seal and smooth, rounded cup mouth enhance the drinking experience while preventing spills. - Integrated Bottle Opener: The lid features a built-in bottle opener for instant access to your favorite beverages, perfect for outings or gatherings without needing extra tools. - Wireless Bluetooth Speaker: The cup is equipped with a sound system at the base, allowing seamless Bluetooth connectivity. Enjoy your favorite music anytime, whether at a picnic, party, or during a relaxing evening at home. Use Scenarios: 1. Ideal for outdoor adventures: Keep your coffee hot during a morning hike or your water cold on a sunny day. 2. Perfect for gatherings: Serve drinks while entertaining guests and blend music seamlessly using the Bluetooth speaker. 3. Great for everyday use: Bring your beverage of choice to the office or gym while enjoying the convenience of a built-in bottle opener and high-quality audio. This innovative cup combines functionality with style, making it a must-have for anyone who values practicality and performance in their drinkware.