"Energize Battery" Mug (Black)

This charming display of vitality lets you know that your beverage is still hot. This mug is heat sensitive and color changing. The battery level is empty until you pour a hot beverage in the cup and the battery levels become green and display the amount of fluid inside.

• The Mug is NOT dishwasher or microwave safe.
• Do not expose the mug in the sunshine for long time.
• Do not scrape the printing pattern on the mug with sharp tools.
• Water temperature should be over 70℃, the pattern color on the Mug will change.
• When filling the mug with hot water or beverage, please pay attention to avoid scalding yourself or your children.