Waterless Graphene Hot Water Bag Rechargeable Hand Warmer,Style:

1. The product is heated by graphene, warm but not hot. It is safe and healthy compared to other heaters on the market and is powered by USB plug-in heating, not water-filled and rechargeable.
2. Constant temperature model and 3 levels of temperature regulation (40/50/60 degrees Celsius) are available, one minute quick heating
3. Lightweight and foldable, can be taken on the plane, travel with you
4. Automatic power-off for 90 minutes of heating, for greater safety
5. Separate water and electricity design, can be washed at will
6. Rated power: 10W
7. Rated voltage: 5V
8. Size: 30 x 19 cm
9. Weight: 82g