Features 1、RAPID HEATING: Electric heating belt, 3 seconds of rapid heating, can effectively relieve abdominal pain, warm the lower abdomen, dispel cold. 2、PAIN REDUCE: The heated waist belt has a 90% larger heating area and multiple areas can be heated to help reduce menstrual cramps and back pain. 3、4 STAGES: Menstrual heating belt comes with 4 temperature stages and 4 massage modes, allowing you to easily adjust the different temperatures and vibration patterns. 4、HIGH FREQUENCY VIBRATION: The menstrual belt uses dual vibration motors with a high frequency of up to 7000 vibrations per minute to help relieve back discomfort. 5、SAFETY IN USE: Intelligent heating belt with temperature control chip, automatic timing, to avoid forgetting to turn off the machine and prevent excessive heat application. Specification Item Type: Electric Heated Waist Belt Material: ABS Heating Temperature: 35℃-65℃ Product Size: Approx. 18 x 9cm / 7.1 x 3.5in Power Supply: Lithium battery Battery Capacity: 2500mAh (shipped with built in battery) Package List 1 x Heated Waist Belt 1 x Instruction Manual 1 x USB Charging Cable