Features： 1、External Device Power Supply Bag: Let life be unlimited, use it anytime and anywhere, take it wherever you go, and use it when you go out. 2、Pockets On The Side: You can put moxa, safflower, ginger and other traditional Chinese medicine packages according to your own needs, and use carbon fiber heating Chinese medicine physiother 3、Relieve Discomfort: Use it to relieve back pain, shoulder pain, stomach pain, cramps, muscle aches, arthritis, etc. 4、Built In Heating Plate: Heating waist wrap relieves waist discomfort caused by cold weather, brings good results and helps relieve physical discomfort. 5、3 Gears Heating Controller: Red light high temperature, blue light medium temperature, green light low temperature, you can adjust the desired heat gears. Specification： Item Type: Lower Back Heating Pad Size: Approx. 115 x 17cm/45.3 x 6.7in (As development drawing) Uses: heating waist, relieve lumbar pain; back pain, body cold, dysmenorrhea, lower abdomen bloating, stomach cold Recommended for the crowd: Lumbar discomfort; long term sitting; sprains and strains; Advantages: Built in heating plate in the lumbar spine to relieve lumbar discomfort caused by cold weather Package List： 1 x Lower Back Heating Pad 1 x USB Cable