Operating instructions for the cool and relaxed graphene heating belt: 1, wrap the selected parts (such as abdomen, lumbar vertebrae or abdomen) with the belt, and then put the mobile power supply into the battery bag. 2. Connect the waistband and the mobile power supply with a data cable, and plug the other end into the mobile power supply interface. 3. Press and hold the temperature control switch for 3 seconds to start the machine and automatically enter the high temperature range. 4. After the switch is turned on, press the temperature control switch for a short time to adjust the temperature (15 seconds later, the indicator light will go out automatically, but the temperature controller is still working). I'm glad you can accept my answer.