Ember Temperature Control Smart Mug Black 10 oz. Battery Life App Control Coffee Heating Mug Purchased on Amazon in January 2022. I think I used it for about 3-4 months after purchase. After that, it was stored in the cupboard. I am selling it because I don't think I will use it in the future. I checked the operation before listing and confirmed that the temperature control works. Everything in the photos is included. There are no noticeable scratches or stains, but please consider it as a used item. 【Brand Features】 Ember is a smart mug with temperature management function that can keep your drink at the ideal temperature. 【Product Benefits】 This mug has a capacity of about 350ml and is perfect for everyday use. It comes with a charger and coaster, so you can enjoy a warm drink anytime. 【Material and Design】 Made of stainless steel, it is durable and features a simple and sophisticated black design. Thank you for viewing.