Built-in temperature sensor, with top screen for real-time water temperature checking. Food healthy stainless steel construction, Rust-resistant, food-grade stainless steel water bottle; stainless steel construction inside and out for long-lasting, fresh-tasting flavorDurable stainless steel material interior, external cute pattern with great texture. The lightweight design is stylish and easy to handle, portable size, easy to carry, and leakproof. fits most cup holders and makes a perfect travel companion320ml leak-proof and spill-proof travel mug, round smooth bottle mouth drink comfortably. airtight seal eliminates accidental spills and maintains a leak-proof drinking bottle; Practical vacuum cup can be used to keep hot drinks in cold weatherStable anti-skid cup bottom, durable wear, good anti-slip effect, and not easy to dump. Suitable for using in any lifestyle situation, such as travel, office, school and picnic