Heated Vest, USB

Features:
One-minute-fast heat, dispelling cold and keeping you warm.
Set the temperature you want to respond to a variety of environments.
One button to heat, three stall temperature control.
It can be washed by machine, and can be washed by hand. 
General USB interface power supply, remove before washing.

Washing instructions:
1. Take out removable charger.
2. Neutral detergent.
3. Delicate cycle.
4. Air dry.