【Tested and Working】Unused Item Knee Massager ☆ Penetrates heat energy deep into the knee through built-in heat conduction and high-frequency vibration functions. ☆ The knee massager itself has heating and vibration functions, and can heat up to over 45 degrees Celsius within 10 minutes with its rapid heating function. ☆ It has 3 temperature settings (45°C, 55°C, and 65°C), allowing you to freely control it as you wish. Accessories: Knee massager *2 Power cable *2 Battery *2 Instruction manual *1 。・゜・。。・゜・。。・゜・。。・゜・。・゜・