USB Heated Knee Support Brace - Adjustable 3-Temperature Control for Effective Knee Injury, Arthritis, and Muscles Pain Relief - Promotes Relaxation, Relieves Knee Stiffness, Strains - Ideal for Knee, Calf, Leg, and Arm Review

My wife has very chronic knee pain. They need to be replaced. She spends a lot of time applying heat to them to ease the pain. Driving was painful, but now with this heated pad, she can drive anywhere. It's USB which is so convenient. For that she is very grateful.

Tried USB but notably not heating. Though the light went on. So I tried the power supply, which worked. I wanted to use a USB portable charger to make it more portable. I agree with others that it's hard and wants to slip. On the other hand, its use is limited. Now to see if it helps an injured knee.

PRODUCT DID NOT WORK ONCE! The product is defective and does not even start to heat. The push button switch never lights up. So I wiggled the cord and the indicator light flashed like it was starting but then it went off straight away, no light, no heat setting color, NO HEAT. According to the product manual, a USB cable is included. BUT NO USB CABLE INCLUDED.