【Say Goodbye to Cramp Pain Easily】- The infrared heating pad adopts light therapy technology to make the energy penetrate deeper and more evenly distribute, promote blood circulation, can treat menstrual cramps pain effectively. Continue using 4 day before menstrual, 4 cycles, which can reduce the pain from grade 8 to grade 1 with long term effect. 【Intelligent Constant Temperature】- USUIE unique precise temperature control technology is more intelligent and better than ordinary heating pads. 3 gears and 2 modes of temperature, that you can personalize for your own comfort, relieve different degrees of dysmenorrhea. 【Natural Ways to Ease Period Cramps】- Paper data show that red light heating therapy is more effective in relieving period pain than normal heated pad. USUIE has been deeply involved in PBM technology for more than 10 years, focusing on liberating women's pain. Safe, healthy and no side effects, effectively treat menstrual pain and achieve short and long-term results. 【Easy to Carry】- The portable heating pad is lightweight and thin, it can be rolled up or put in a bag for working, driving, traveling, home use. Moreover, electric heating pad has safe 20-minute auto-off, large heating area, quiet, let you improve the quality of work and life in special times. 【Best Gift For Your Love】- Beautifully packaged, it is a decent gift for friends, lover, daughters and moms. We provide 1 year quality guarantee, if you have any questions about red light therapy belt, please contact us, we will reply you within 24 hours.