Description:1. Product Name: Intelligent heating vest electric vest USB charging stand collar warm cotton coat2. Material: fabric polyester fiber + lining polyester fiber + carbon fiber heating sheet3. Features: Intelligent three-speed temperature control can be adjusted, warm and warm, suitable for winter wear. Warm file 10000 mA can use 6H-8H, comfortable gear 10000 mA can use 8H-10H, energy saving file 10000 mA can use 10H-12H.4. How to use:(1) Remove the USB plug(2) Access to mobile charging power(3) Press the chest temperature control output switch(4) Press and hold the chest temperature control switch for 3 seconds, start to warm up and then adjust to the medium temperature heat.(5) Manual adjustment to third gear, warm temperature 45 degrees Celsius, comfort temperature 35 degrees Celsius, energy saving temperature 25 degrees Celsius(6) Press and hold the chest temperature control switch for 3 seconds, turn off the light to stop heating.5. Washing instructions:Remove the mobile power supply, add neutral detergent and wash it by hand. Do not force it or beat it. Allow the washed clothes to be naturally ventilated and dried before use. The highest washing water temperature is 30 degrees Celsius. Do not bleach, do not turn over and dry, do not iron, do not dry clean, do not bleach, can be hand washed, machine washable, gently rubbed by hand, rinse. Hang dry and do not wring out by hand.6. Note:Do not use for a long time, please do not connect to mobile power. Do not use hot water or strong acid detergent. Do not use electricity for wet clothes. Please turn off the power and stop using the rain. The usage time depends on the size of the charging capacity. Do not connect directly to the power charger, please use the mobile charging connection as a power supply.7. Size: See size chart.The package includes:1x Intelligent Heating Vest Electric Vest Usb Charging Stand Collar Warm Cotton Coat.Product Pictures:1x Intelligent Heating Vest Electric Vest Usb Charging Stand Collar Warm Cotton Coat. Product Pictures: - Image 1: https://ae01.alicdn.com/kf/HTB1T99nXOjrK1RjSsplq6xHmV