Features:

*1. Adopt carbon fiber heating wire, which has fast heating speed, stable performance, environmental protection and energy saving. 

*2. 4 control switch design, 21 Heating Zones and 3 Temperature Adjustment: Carbon fiber heating elements generate heat across the waist, belly, neck, shoulder, and back, promote blood circulation and keep you warm.

*3. Use USB universal interface. In order to ensure the best heating effect, it is necessary to use mobile power supply with 5V/2A output.

*4. Thick lining, warm and breathable, soft and comfortable touch, warm to wear, provide continuous warmth for your back, neck, shoulder, waist, abdomen, and more.

*5. The power interface shall be insulated and waterproof, no need to disassemble, can be washed by hand or machine.

Description: 

*1. Size(EU): S/M/L/XL/XXL

*2. Material: Polyester fiber

*3. Fabric: Nylon

Instructions:

*1. Take out the USB plug.

*2. Access to the mobile charging power source.

*3. Press and hold the chest temperature control output switch for 3 seconds.

*4. Long press the chest temperature control switch for 3 seconds, start to warm up and then adjust to the medium temperature heat when you need to always connect the mobile power.

*5. Manual adjustment between 3 gears. Warm at 50 degrees Celsius, Comfortable at 40 degrees Celsius, and Energy-saving at 30 degrees Celsius.

*6. Press and hold the chest temperature control switch for 3 seconds, and turn off the light to stop heating. 

Package Includes: 

1 x Heating Vest(without power supply)