This is a belt to warm your lower back and abdomen. I removed the outer box's film, but I have never used it. It's easy to use, gently warms, and is good for relieving pain and coldness. It has been stored at home. Please check the images for the explanation. This heated belt features intelligent constant temperature control and offers a comfortable warming experience with three selectable modes. - Brand: Bisunry - Model Name: Heated Belt - Features: 3 selectable modes - Special Features: Intelligent constant temperature control - Power: Type-C charging - How to use: Belt type to be worn on the lower back Thank you for viewing. Hot belt Heated belt Heater Gift Cold protection