Thermal Belt • 3 temperature settings (45, 55, 65) • 3 vibration massage modes. •Rechargeable battery. •Easy to use.. Input voltage: 5V / 1A Do not use if: People with heart disease. Patients with unhealed skin wounds. Patients who have had or have not fully recovered from gout. Pregnant women. People with cervical tumors. ABS, metal alloy.