Comfortable and warmheated vest has 9 carbon fiber heating pads that produce heat in the abdomen and back, making you feel warm within 360 degrees, allowing you to enjoy the comfort of warmth quickly and safely, and helping to promote blood circulation and relieve muscle pain. 3 Temperature Levels Electrically Heated JacketEasy to operate, the temperature is adjusted by the button on the left chest of the heated garment (red high, white medium, blue low), so you can adjust different heating levels depending on the weather and environment. fleece Machine Wash Convenient Heating Electric heated vest is compatible with any power bank with 5V 2A/2.1A USB output port. When it is connected to a 5V / 2A mobile power source (not included), hold down the power button for 3 seconds, and the graphite carbon fiber heating elements will generate heat across core body areas. High-quality material, machine washableHigh-quality material with anti-static and excellent insulation function, so you stay warm. Lightweight and soft hand feel makes you more comfortable. The heated vest jacket is machine washable and can be easily cared for and worn. It is easy to use and can be washed in a laundry bag. Suitable for all occasionsThe rechargeable heated vest keeps you warm and is perfect for a variety of outdoor activities, such as motorcycle riding, hiking, skiing, fishing, hunting. Perfect gift for parents, family and friends who have trouble fighting off cold weather in the winter for a thoughtful Christmas or birthday.