USB Coffee Mug Warmer

This cup warmer made of high quality walnut wood and metal materials, heating evenly, safe and durable to use. Keep your coffee, tea or other hot beverage warm up to 80¡æ, safe in use. Light weight and compact size, easy to carry and suitable for most stainless steel cup, feeding bottle, ceramic cup, glass cup, etc. Powered by any devices with output 5V USB port, such as your computer, easy and convenient. Widely used in home and office. This beverage warmer is not designed to heat up drinks. It is only designed to keep drinks warmer for longer periods of time.