Heated Vest Large Area Intelligent Constant Temperature Electric Heating Vest Adjustable USB

Features:
Large-area heating, rapid cold driving, constant temperature warmth, making you feel warm as spring even in the cold winter.
Four-control switch, three-speed temperature control, to meet different temperature needs.
Composite carbon fiber heating, good thermal conductivity, lasting constant temperature, keeping your body at a comfortable temperature at all times.
Can be washed directly, convenient and practical, no need to worry about cleaning problems.
Just one power bank can make you warm instantly, no need to worry about power supply problems.