After Charging for 6-10 miniuts t can be kept warm for 2-4 hours

New technologies for heating energy storage that can be faster speed up heating New structure and free of crack, keeping long time warmer.

It is multipurpose that can be made warm for the hands, foot, waist and quilt.

ATTENTION : When item is in normal use, the bag's size exceeds the original size 1/4 or 1/3, please discharge air in the bag.

WARNING : Children must not operate the charging process and the charging should be done untouchable 2 meters away from the children.