Feature: 1. Intelligent Temperature Control: Reasonable distribution of dual vibration motors on the waist, 4 gears high frequency vibration adjustable, 7000 vibrations per minute, relieve waist discomfort. 2. Multi Function: One instrument with multiple enjoyments, warms the uterus, protects the waist, warms the stomach, and says goodbye to uterine cold, dysmenorrhea and low back pain. 3. Intelligent Safety: Temperature control chip, multiple protections, care for safety and health, automatic timing, avoid forgetting to shut down and overheating. 4. High Efficiency Quick Heating System: Quickly heating in 3 seconds, warming when turned on, quickly soothing dysmenorrhea, and warming the lower abdomen. 5. Large Area Heating: Menstrual heating pad uses 90% of the large area heat, multi part care and hot compresses, to keep you away from the cold. Specification: Item Type: Menstrual Heating Pad Size: Approx. 18 x 9cm / 7.09 x 3.54in Power supply mode: Lithium battery Battery capacity: 1800mAh (Shipped with built in battery) 4 Gears Vibration: 1: Low frequency light soothing and pain relief 2: Medium frequency soothing massage 3: High frequency strong vibration massage 4: Comprehensive nursing massage 4 Gears Temperature Adjustment: 1: 45℃ Daily warm uterus 2: 55℃ Menstrual care 3: 65℃ Dysmenorrhea care 4: Combination care. Package List: 1 x Menstrual Heating Pad1 x USB Cable