Heated vestThe heated vest can be widely used in various outdoor activities. It will make you feel warm quickly, and you can choose the heating area and the heating level, which is very intimate. Just a small button, it can warm you the whole winter. The heated pads can also help promote blood circulation, relief pain of muscles. Best Christmas gift for parents and families.How To Use:Insert the USB port to 5V/2.1A power bank, put the power bank in the pocket (Note:Power bank need to purchase separately);Long pressing the switch of the vest for 3 seconds to turn it on/off;Short pressing the switch to change the heating mode.Double Switch Button & Three Temperature Settings：This vest has five heating zones, "BELLY" button controls the first two heating areas, and the "BACK" button controls the heating areas in the neck and back. It's adjustable with 3 different heating levels so that you can choose a preferable temperature with the simple press of a button.Built-in Pocket:Built -in pocket can place your power bank, no need extra pack, it is more convenient. Just plug in the vest using the easy-access charging port.giftIt is a perfect Gift for Family Members and Friends. The heating vest is suitable for men, women, adult and elder people. It is also a perfect gift for Birthday and coming Thanksgiving or Christmas Day, etc.Package Includes:1 x Heated Vest1 x Instructional Manual9 heating zonesWashing Precautions:Remove the battery pack before cleaning.It is only recommended to wash by hand. No wring. No dry wash. Drip dry in a ventilated area for extended service life.Considerations:Please do not use more than 5V input DC power to avoid security problems.Prohibit the use of products while sleeping.NOT for pregnant women, young children and thos