Functions:
It is great for keeping those winter chills away, simply is charged for few minutes, you will have instant heat for around 2-4 hours. Ideal for all cold weather activities, . It has health protection function and good treatment for arthritic.

Features:
1) Heal back and neck pain, It can help to treat and prevent theneck plain caused by
overworked, and release the pain quickly, provide comfort for arthritic relief and
relief menstruate pain, etc.
2) Take 8 to 18 minutes to heat up only, which can keep warming hand for 2 hours and
warming quilt for 10 hours
3) When temperature reaches 68-75 degree celsius,it will self-adjust to the correct
temperature
4) Not necessary to refill water