Product Description:Stay hydrated and keep your beverages at the perfect temperature with our 500ml Double Wall Stainless Steel Insulated Vacuum Flask. Designed with a sleek and modern aesthetic, this thermos cup comes in four vibrant colors: red, black, green, and blue. The LED smart display on the lid provides real-time temperature readings, ensuring your drink is always at the ideal temperature. Perfect for both hot and cold beverages, this bottle features double-wall insulation to maintain temperature for hours. Custom logo options make it an excellent promotional item or personal accessory.