[Health & Pain Relief]: The back electric heat belt is made of graphene, softer and healthier; Electric heating belts provide comfortable warmth for back pain, alleviate muscle soreness , relieve cramps, sedentary lifestyle and keep waist warm; Perfectly suitable for women, the elderly, office workers, etc [Fast Heating & Dual Compression Straps]: Plug & play and heat up in seconds, the USB heating belt works when plugged into the power source, and the low current is safer for using; Two adjustment straps provide custom fit and compression, making the electric heating belt lock in place where you need it [Adjustable and Widely Used]: The back heat belt can be adjusted according to individual needs, you can use it on your waist, back, stomach, shoulder, wrist, knee or foot to promote blood circulation, relieve stress, muscle pain, etc.; The electric heat belt fits a waist up to 110CM, please measure at the navel befor buy it. Features 1. Quickly heat the waist/back to relieve local pain 2. TWO compression straps to increase lumbar support 3. Can heating hands, shoulders, back and other parts 4. Move when heating with a mobile charger 5. Use before work, rest, drive or sleep 6. Suitable for the elderly, office workers, women with dysmenorrhea, back pain, etc. 7. It's a good idea for gifts 1. The package only includes the heating Waist belt ,user manual and data cable, excluding the charging bench / charging head/Power bank 2. The pack does not include cold or hot ice packs. 3. The heating temperature is not too high to avoid scalding the skin. 4. After pressing the power supply for 3 seconds, the power supply will start. If the temperature is used for a long time, the protection level will be switched automatically. 5. When working at home, it is recommended to use a continuous power source,and use the mobile power outdoors.