The Temperature Control Smart Mug 2 is a 14 oz app-controlled heated coffee mug that operates on battery power. Made of copper, this mug can maintain a temperature range of 120 degrees Fahrenheit to 145 degrees Fahrenheit. With a sleek design and a capacity of 14 fluid ounces, this smart mug is perfect for keeping your coffee hot while on the go. The set includes a mug and requires 1 product-specific battery for operation. Made in China, this innovative product is ideal for those looking for a convenient and efficient way to enjoy their favorite beverages.