PRODUCT INFORMATION Adjust 3 heated vest's heating settings (High, medium, low) with just a simple press of the button Up to 10 working hours (3 hrs on high, 5 hrs on medium, and 10 hrs on low heating setting) Heat quickly in seconds with a 5V battery pack WHAT'S INCLUDED 1 × Heated Jacket 1 × Battery (5000mAh, 5V) 1 × User Manual 1 × Travel Bag