Wearable technology, once the stuff of old spy movies, is rapidly moving into the 21st century. Today, consumers can buy wristbands that count steps and track sleep, athletic shoes that monitor fitness, watches that double as phones, and smart glasses that function as a computer or GPS. Imagine that you have invented an exciting new item of wearable technology. Write a advertisement in which you describe this item, explain what it does, and convince readers to buy it.