Nextmug by Nextboom sells on Amazon. I think the price is very good. Please read some of the reviews and see people thought of the product.**If you’re not sure whether to buy, add to cart, and you can come back to it later!**

• ALWAYS THE PERFECT TEMPERATURE – The Nextmug will keep your hot coffee, tea or preferred beverage at the perfect temperature wherever you are. Simply select Warm (130°), Hot (140°), or Piping (150°) and enjoy for hours.
• SMART MUG TECHNOLOGY – Long-lasting battery & sensors maintain your ideal temperature. LED lights display battery life & real-time temperature. Includes Auto-off technology & Charging Coaster.
• SUPER SIMPLE – On-board Control Button easily turns mug On/Off & sets the temperature. Takes only seconds to set the mug to your perfect temperature.  No app required – no passwords, re-booting or security concerns.
• THE PERFECT GIFT – Give the gift that is certain to delight. Everyone on your list will love their hot coffee or tea drink at the perfect temperature, whether it’s at home, the office or the home office.