1、Knee Pad: The heated knee brace wrap uses a circular knee protection module to keep the patella, meniscus and other parts of the knee, can cushion, anti collision. 2、Rechargeable Battery: Heated knee wrap comes with two special lithium batteries, which can be charged by USB and used anywhere and anytime to meet the needs of different places. 3、Warm and Washable: Heated knee brace is made of external thermal fabric and lined with thermal chip, which is good for heat and warmth, soft and washable. 4、Hook Loop Design: Knee heating pad with burr free safety hook loop (shot hook technology) does not tie, do not hurt the clothes, strong anti tension, repeated bonding, reusable. 5、Wide Range of Application: The rechargeable knee heating pad is suitable for running and cycling, hiking, fitness, basketball, soccer, badminton, tennis, etc. Item Type: Heated Knee Wrap Material: Polyamide, Polyester, Rubber Battery: 2 Lithium Batteries (included); Model: 134165AP; Capacity Per Piece: 3600mAh 2 x Heated Knee Wrap 2 x Adapter Cable 2 x Battery 1 x Battery Charging Cable 1 x Plug