Country as Labeled 3 HEATING LEVELS This heated vest jacket has three heating levels that generate temperatures from 35C/95 to 55C/131. High temperature = red, medium temperature = blue, low temperature = white. Different temperatures can be selected as required, It's the best option to keep warm in winter. 11 HEATING ZONES This heated vest contains 11 high-performance carbon fiber heating pads. It is safe and harmless with high heating power and stable performance. It can continuously generate heat in 5 central body areas of the left and right waist, left and right flanks, and middle back, keeping the body warm. USB POWERED & SAFE 5V USB powered, works with any portable 5V / 2.1A power supply,can keep heating for 8 hours. Double-sided USB connection, can be plugged into the USB socket of regardless of the direction. Built-in thermal protection module, so it is safe to use (NOTE: The power supply is not included). MACHINE WASHABLE The heated vest is made of fleece, is soft, light, quick-drying and easy to wash. is comfortable to wear and can be washed by hand and machine (note: put in a laundry bag). Wrinkle and abrasion resistant, warm and easy to clean. Skin-friendly materials just make you feel comfortable and happy. FOR ALL OCCASIONS Perfect for the daily commute, for people who work outside, wear under their winter jacket or even in an office that is way too cold! Ideal gift for family members, friends, employees to enjoy motorcycling, hiking, camping, fishing and other outdoor activities in autumn and winter. Let us start a new journey together with Heated Vest Heated Vest Operating Steps: STEP 1: Open the inside pocket zipper, pull the wire out of the pocket and connect it to the USB port of the power bank. ( Note: Portable Charger Power Bank Need To Be Bought Separately). STEP 2: Long press the chest button on the vest about 2 seconds until lights on to start heating, you can press the buttons with different icon to choose heat front and rear part separately or simultaneously. STEP 3: Short press the buttons on the chest to shift to 3 different temperature levels. The indicated light colors will change accordingly, Red- High temperature, White- Medium temperature, Blue- Low temperature. (Tips: Heating duration depends on the power bank capacity and the temperature level you choose.) STEP 4: Long press buttons on the chest about 2 seconds until lights off, double-click the button on the power bank or disconnect the power bank to turn off the heating. Note : 1.Please note that the heated vest must be connected to a 5V/2A power bank; If the power bank is less than 2.0A and the voltage is less than 5V, the carbon fiber heating cloth cannot do normal work 2.This heated jacket can be easily wash by hands or machine, make sure the power bank has been removed before washing, folding and storage.