Mini Heating Coasters w/ 3 Heating Levels

3 Adjustable Temperature & Touch SensorHeat quickly in seconds, Touch Sensor for 3 heating settings (high, medium, low), keep the temperature at 40-60℃ (55℃ is best for drink ) with the smart heating system.4 Smart Timing SwitchThe 1st touch,the heating pad will be on; the 2nd touch, the heating pad will auto shut off after 4 hours; the 3rd touch, the heating pad will auto shut off after 8 hours;the 4th touch, the heating pad will auto shut off after 12 hours; if you forget to turn off it, it will auto shut off after 8 hours.Convenient USB CablePowered by any devices with output 5V USB port, such as your computer, desktop, laptop, tablet, mobile power and so on, easy and convenient. Extended 1.2m cord length to use making you enjoy hot drinks whenever you want it.Portable Coffee WarmerLight weight and compact size, easy to carry and suitable for most stainless steel cup, feeding bottle, ceramic cup, glass cup, etc. Great for use at home and office, keeping you brew warm on cold day