Use 5V, 2A, 10000Ah or more power bank.
Do you enjoy outdoor adventures during the winter season? Stay warm with this one of a kind outdoor adventure heat vest. The vest heats up fast and within minutes keeping you warm, while enjoying the great outdoors. Simply set the temperature you want to respond to in a variety of environments. The vest is warm, comfortable and breathable, and it's a good partner for your winter going out.
It can be washed by machine and can be washed by hand. Do not wring it by hand. General USB interface power supply, longer service life, anti-water splashing and washable.
Style: Sleeveless Vest
Color: black, blue, red
Power Supply: 5V/2A Mobile Power (Not Included)
Temperature Control Settings: Warm: 45 ℃ (Red Light), Comfort: 35 ℃ (White Light), Energy Saving: 25 ℃ (Blue Light)
Package Contents:1 Sleeveless Heat Vest