Fast Heating within 3s: Our menstrual heating pad uses upgraded fast heating technology that can provide warmth quickly. The soft fabric and thicken ABS makes it comcompatibletable to wear. And its rechargable battery and portable design makes it even popular among our customer.Safety Protection: We take our customer's safety as the highest priority part.As an electric heating belt, it have fully protection of overheating and would shut down automatically every 30 mins. Kindly minded that don't let it touch your skin directly3 Modes of Heating: Our portable heating pad has three modes of heating, compatibleable compatible different situation not only compatible normal body warming and abdomen pain, but also compatible enstrual heating and sore waist problem.3 Modes of Massage: As a pain relief belt, it can also work as muscle massager and have 3 modes of vibration.Help to relieve sore waist and back pain. It will be a portable and useful item in different occasions like: resting, reading, driving and even working.