Without Power Bank and Charger; Without Power Bank and Charger; Without Power Bank and Charger; If you select this Heating Pads for Cramps, Thanks to charge it with Your Own Output 5V2A Power bank or Charger 【3 HEATING TEMP 3 MASSAGE MODES】Designed with 3 heating temp and 3 vibration massage modes, you could adjust the temperature according to your actual needs which are comfortable for your menstrual, And muscles. The Heating Pads for Cramps is more than just a heating pad, but is also a massage device that allows you to choose the suitable vibration mode for you, and brings you a comfortable massage experience 【PREMIUM HEATING MATERIAL】The heating pads for cramps use composite fiber layers, and an inner Lycra fabric layer for a better feeling, all those layers of heating pads make our product close to your abdomen. The breathable material provides you breathable wearing experience, and won't make you feel uncomfortable, using it while making you feel at ease 【NOT ONLY JUST FOR HOME USE】With low noise during the operation and cordless design, heating pads for cramps are also suitable for multiple scene uses. The wireless design allows the electric heat pad is not limited by the use scenarios, simply charge the waist belt through the USB port, then you can start resting at home, in the office, on the way to work, or on other occasions by using the period cramp heating pad 【THE GREAT GIFT CHOICE FOR GIRL】heating pads for cramps is packed in a beautiful gift box, so they can be a great self-use product, but also as a gift for your girlfriend, daughter, mother, and friends 【UPGRADED IN JUNE】According to customer feedback, we have upgraded the heating material, which brings more uniform and stable heat, more comfortable than the old solution. In order to let the Menstrual Relief Pad normal work, thanks to using your output 5V2A charger; Most issues of not work due to using the output 5V1A charger