Description: Using: This electric portable heating pad device uses USB charging which is more convenient. It has three different adjustable temperatures and three different high-frequency vibration frequencies, you can choose the mode according to your needs. Automatic Design: The portable heating pad is designed to automatically shut down. If you fall asleep during use, our product will automatically turn off within 30 minutes when it detects that you have not made any movement, which can ensure your safety and health. If you want to use it again, just turn it on again. Portable: It occupies a small area, is easy to carry, and can be used at any time. Applications: You can use our products in different scenarios, whether you are resting, reading, driving, or working, it will not have too much influence to you. Note: This heat pad can create heating effectively and quickly. So please choose lowest level at first use. Whats more, dont let skin direct touch with device. Please put a piece cloth between device and your skin. Please note: 1. Type B without extension cable. 2. The product itself does not have a battery, so it cannot work after a power failure. Specification: Product name: heated waist belt Color: pink Material: Graphene Type: A, B A#Hot compress B#Hot compress + vibration Length: about94cm/37.00inch Data cable length: about 25cm/9.84inch Package Includes: Type A: 1pc*heated waist belt 1pc*extension cable Type B: 1pc*heated waist belt Note: 1. Due to the light and screen difference, the item's color may be slightly different from the pictures. 2. Please allow 0.5-2 cm differences due to manual measurement.