Heated Thermo Therapeutic Knee Brace

The heated knee brace promotes blood circulation and relieves knee pain. Thanks to its USB power cable, you can relax at home or in the office. This heated knee brace has 3 red/white/blue settings, a short press of the button switches to another heating setting and a long press of the button turns it on or off. Specifications: USB output voltage: 5V/DC The first gear (red light), the temperature is about 44°C. In second gear (white light), the temperature is around 41°C. The third gear (blue light), the temperature is about 38°C.