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♚Made of high quality walnut wood and metal materials, heating evenly, safe and durable to use.
♚Powered by any devices with output 5V USB port, such as your computer, desktop, laptop, tablet, mobile power and so on, easy and convenient.
♚Light weight and compact size, easy to carry and suitable for most stainless steel cup, feeding bottle, ceramic cup, glass cup, etc.
♚Keep your coffee, tea or other hot beverage warm up to 80℃, do not worry about high temperature and high oxidation, safe in use.
♚Great for use at home and office, keeping you brew warm on cold days.