USB Electric Heating Menstrual Heat Belt Temperature Control For Period Pain Relief Product Information Battery capacity: 1000mah Heating temperature: 40 for 1st gear, 50 for 2nd gear, 60 for 3rd gear Product function: vibration, hot compress Easy to use: This electric portable heating pad device uses USB for charging, which is more convenient. It has three different temperatures and three different mass-age modes. You can select the mode as required. More ergonomic: there is a very soft and comfortable contact surface on the back of our heating pad, which can make you feel comfortable and dissipate heat evenly. Considering the waist circumference, our belt can be adjusted to 60 inches at most. Multi scenario use: You can use our products in different scenarios. No matter you are resting, reading, driving or working, it will not have too much impact on you. Comfortable vibration, warming the uter-us and dispelling cold: increase the area of warming the uter-us, effectively relieve pain, flexibility, fever and heat dissipation, apply heat to the stomach, persist in using it for a long time, effectively recuperate the body and care for health. Packet Including: 1x heating massage belt Note: 1. Due to the different monitor and lighting effect, the actual color of the item may be slightly different from the color shown on the pictures. 2. Please allow 1-3cm error due to manual measurement. (1 inch = 2.54 cm) Thanks for your support :)