Feature: 1. Recover Body: Carbon fiber heating elements generate heat in the shoulders, waist, and abdomen to relieve pain and shorten the recovery time.    2. Safe And Comfortable To Use: Use of carbon fiber heating heating , rapid heating technology, light and flexible, safe to use.    3. Promote Physical Health: Heated vests can promote healthy blood and increase muscle oxygen and nutrient etc.    4. Unique Design: Heated jacket is specially designed for most cold weather workers and other outdoor activities such as biking, hiking.    5. 8 Heating Zones: The heating vest adds more heating zones and covers 8 heating zones to achieve core body warmth and comfort.       Specification:            Item Type: Heated Vest    Three gears temperature control, red 55& 8451;, white 50& 8451;, blue 45& 8451;        Instructions 1. Take out the USB socket from the heating vest pocket. 2. Connect the USB socket to power supply, and press and hold switch button for 3 seconds to automatically turn on. 3. Red light is continuously heated to 55°C for high temperature. Manual temperature adjustment, the highest temperature is 55°C when the red light is on, the second gear white light is 50°C, the third gear blue light is 45°C, long press switch button to turn off light to stop heating (the heating is divided into front and rear zones, you can press the heating button respectively) Washing Instructions: 1. Before washing, please take out the power bank and put the USB port in your pocket. 2. It is recommended to wash by hand, such as machine washing, you need to put the clothes in a laundry bag for washing. 3. After washing, you must wait for the product to dry completely before opening it for use 4. Do not bleach, do not use strong chemical cleaning solutions to clean or drown, do not soak for a long time, hang to dry, do not twist or dry.                    Package List: 1 x Heated Vest       Note:        Please allow 1& 8209;3cm error due to manual measurement. Thanks for your understanding.