• The warming pad is compatible with the majority of cups, including glass, stainless steel, ceramic, and others. Use a stainless steel or glass cup with a flat bottom for best results. A lid covering the mug will also aid in retaining heat.
• Safe &amp; Reliable: This cup warmer has an automated shut-off/on feature thanks to microgravity technology. The coffee warmer will activate just by placing your mug on it, and it will turn off automatically when you remove it.
• Waterproof construction: a layer of heat conductive glass was placed over the warming pad to prevent leaks, making it reliable, safe, and simple to clean.
• Ideal Gift: the coffee warmer keeps the beverages (coffee, tea, milk etc) warm whole day, making it a great gift for lover, dad, mom, wife, husband, grandparents and all your cherished ones on Valentine's day, Thanksgiving and Christmas, and other special occasions to express your sincere care. coffee mug with lid travel coffee mug