(Open-box) Men's Heated Hunting Jacket - Camouflage, Mossy Oak® Country DNA (Battery Set Not Included)HEATING SYSTEM 4 carbon fiber heating elements generate heat across core body areas (left & right chest, collar, and mid back) Adjust 3 heating settings (High, medium, low) with just a simple press of the button Up to 10 working hours (3 hrs on high, 6 hrs on medium, 10 hrs on low heating setting) Heat quickly in seconds with 7. 2V UL CE certified battery USB port for charging smart phones and other mobile devices WHAT'S INCLUDED With B19G Battery