This is a cup warmer. I placed a cup on it once to check if it worked, but it's essentially unused. The retail price was 2700 yen. It's the type that activates the switch by the weight of the cup. It transfers heat directly, so thick mugs may not warm up easily. Please be aware of this. - Model Name: HECLX Coffee Mug Warmer - Temperature Settings: 55°C, 65°C, 75°C - Power Source: AC power - Features: Gravity sensor, Temperature memory