The Ember Mug 2 Temperature Control Stainless Steel Black 10 oz smartphone is a sleek and sophisticated two-piece mug set perfect for both men and women. Made of durable stainless steel, this mug features a solid black color and has a capacity of 10 oz. With its advanced temperature control technology and battery life of 1.5 hours, it ensures that your hot beverages stay hot for longer periods. Its compatibility with smartphones allows for easy control, making it a convenient and stylish addition to any home or office setup. Additionally, it is safe to hand wash, making it easy to maintain and keep clean.