1. Quick Heating: Electric heating belt, quick heating for 3 seconds, comfortable hot compress, can effectively relieve menstrual pain, warm the lower abdomen, and dispel cold.2. Relieve Discomfort: The heated waistband has larger heating area, and multiple areas can be heated to help alleviate menstrual and back pain.3. Adjustable Design: The menstrual heating belt is equipped with 4 temperature levels and 5 massage modes, allowing you to easily adjust different temperatures and vibration modes.4. Vibration: The menstrual belt adopts a dual vibration motor, with a vibration frequency of up to 7,000 times per minute, helping to alleviate back discomfort.5. Usage safety: Intelligent heating strip, temperature control chip, automatic timing, to avoid forgetting to shut down, and to prevent overheating applications. Elastic waist band, can be adjusted in length at will.Spec:Item Type: Menstrual Heating PadMaterial: ABSHeating Temperature: 35℃ - 65℃Product Size: Approx. 18 x 9cm / 7.09 x 3.54inPower Supply: Lithium ion battery. Battery Capacity: 2500mAh, shipped with built in battery. How to Use:1. Temperature Button: 4 level temperature adjustment, long press to turn on and heat up, long press again to turn off, short press to switch gears, 35℃, 45℃, 55℃, and 65℃° respectively. Four lights represent four different temperatures. 2. Double click to check the battery level, and four indicator lights will follow up with the current battery level and slowly flash 5 times. Four lights represent 0%‑25%, 25%‑50%, 50%‑75%, and 75%‑100.0% of battery capacity, respectively. 3. Vibration Button: 5 level vibration mode, long press to turn on vibration, long press again to turn off vibration, short press to switch gears. 4. Work Indicator Light: When heating or vibration is turned on, the warm light remains on for a long time. When charging, the red light remains on for a long time and