High quality, safe and reliable heating vest, more effectively enhance the vitality of the human body. This high fashion heating vest is a warm winter gift for family and friends.How to use:1. Take out the pocket cable and connect the 5V battery pack (included)2. Three heating levels can be controlled by a control button3. Click the button to adjust the heating level4. Long press the button for 3 seconds to turn on/offEasy to Care1.Durable fabrics and high-quality heating pads support machine wash and hand wash. Air dry, do not wring out, do not iron.2.Please take out the battery and connecting wire before cleaning, and use a laundry bag for cleaning.