I have been selling on eBay for 20 years and have 100% positive feedback. Buy with confidence and please ask any questions you may have! The Ember 10 Ounce Ceramic Temperature Control Smart Mug in Black is a sleek and innovative mug designed to keep your hot beverages at the perfect temperature. With features like LED lighting, the Ember App, and smart technology, this mug offers convenience and precision. Made of durable stainless steel, this mug is both stylish and practical, making it a great gift for anyone who enjoys enjoying hot drinks on the go.m