Fast-heating Knee Pad: Heats in seconds, provides ultra comfy hot therapy for knee pain relief and injury recovery, keeps knee warm, can also be used on calfs, thighs, arms to relieve muscle soreness and cramps
3 Heat-settings: Easy to operate, you can control the heating temp and time totally by yourself. The power button with LED indicator, it can be operated to red-highest, white-medium, blue-lowest temp setting. Short press the button for once can change to another heat setting
Adjustable and Stay in Place: With 2 bifurcate straps design, and hook and loop closure, the heating pad can wrap around and be locked at any leg or arm position where you need heat compress, you needn't hold it by hand anymore. With a built-in mash bag, put an ice bag in, you can use it for cold therapy if necessary
USB Cord: Portable to use, it can be pluged in any power supplies with USB port, such as power bank, PC, laptop, desktop computer, car charger, and the heating temp can be various for these power sources with different output currents. 

USB Knee Heating Pads
Constant heat therapy to meet the various need
Provide ultra comfy hot therapy for knee pain relief and injury recovery, keeps knee warm

Heat therapy pad wraps your knee and promotes blood circulation stimulation

You can still move around while plugged into a portable charger (not included)

Variable heat is a nice feature and the ability to plug it in while driving on a long trip, very handy; You can use the USB knee heating pad when take a walk!

Specifications:
Colour:Black

Material: polyester
Temperature Settings: 3 settings (High(Red) - Medium(White) - Low(Blue))
Heating Time: 6 hours
Recommend Power: Use 5V Adapter or power supply
Gender: Unisex

Package included:

1 x Heated Knee Pad
1 x USB Cable