General description The Heated Jacket for Men and Women features 4 heat zones and 3 adjustable heat settings, providing customizable warmth for various conditions. It is powered by a USB charger and is machine washable for easy maintenance. Technical specifications Heat Zones: 4 Heat Settings: 3 (High, Medium, Low) Power Source: USB charger Size: XXL Color: Black Installation Remove the USB plug Access the power bank Press the power bank input switch Press and hold the thermostat switch on the chest for 2 seconds to activate Usage Red light indicates high temperature heating White light indicates medium temperature heating Blue light indicates low temperature heating To turn off, press and hold the thermostat switch for 2 seconds Other information Washing Instructions: Remove the power bank, use neutral detergent for hand washing, avoid vigorous rubbing, and let air dry naturally. Precautions: Do not connect to the power bank if not in use for a long time, avoid high temperature water