Sharper Image Cup Warmer

No, this device is specifically engineered for paper coffee cups. The heat transfer plate is designed to make direct contact with the bottom of a paper cup for optimal efficiency, so it will not effectively heat ceramic or glass containers.

While battery life can vary based on the ambient temperature and the starting temperature of your beverage, the device is designed to keep your drink hot for twice as long as it would stay warm on its own. It is intended for short-term use during your commute or while working at your desk.

The aluminum top plate reaches temperatures up to 200°F to heat your beverage, so it will be very hot during operation. Please handle it with care and avoid touching the heating surface while it is active.

You don't need to worry about leaving it on. The warmer includes a built-in smart-shutoff safety feature that automatically powers down the device after a set period of inactivity.

You don't need to clean it at all. Because it sits underneath your paper cup and never comes into direct contact with your beverage, the device remains clean during use.

Yes, you can use the warmer while it is connected to a power source via the Micro-USB cable. This is a great option if you are using it at a stationary desk setup for an extended period.