Features:1¡¢3 Gear Temperature Adjustable: This vest has a temperature adjustable range from 30¡æ to 50¡æ. 30¡æ blue light energy saving gear, 40¡æ white light comfortable gear, and 50¡æ red light warm gear. 2¡¢Washable: This vest is washable that both hand wash and machine wash are ok. Remember to unplug the mobile power supply and remove the intelligent thermostat. 3¡¢Lightweight: This is a lightweight heating vest that it can help you keep warm easily, and you do not have to wear heavy winter clothes all winter. 4¡¢2 Function Button: There is a dual use button that for on off and gear adjustable, 3s press for turn on and turn off, other presses for gear adjustment. 5¡¢Best Choice: This vest is the best choice for you whether you are outdoors, hunting, skiing, or staying in the office, it is your ideal choice.Package included:1 x Electric Heating Vest