1. Material: Mutispandex & Neoprene &Velcro

2. Temperature: 40 to 55 degrees.

3. Accessories: Global Charger, Lithium Battery.

4. Working time: 3.5~6hours (High to low level).

5. For people who has strain, pull, stiff on knee.

6. Charger Capacity: 1900mAh, Lithium polymer,

DC7.4V, Max. power output 15W, Charge current 1.0A, Life Recharge over 500 times.

7. CE / RoHS / UL adaptor.