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- The hand warmer, which generates heat up to 52 degrees, lasts up to 6 hours depending on the usage environment, and supports the Warm Control function that automatically increases and maintains the temperature as soon as the power is turned on.- With its compact size that fits in one hand and an ultra-light weight of 75g, you can carry it lightly..

-Ha Heon-ju Thermal Health Science, Korea's first thermal health platform company...