The Mobile Warming Bluetooth enabled 12volt Summit Duck Down Heated Jacket is designed for the active lifestyle. The light-weight, 100% nylon outer shell with ultra-warm duck down core is perfect for hikers, climbers or anyone who spends long periods in the cold. The 500-fill 85/10 duck down core allows for free movement during even the most rigorous outdoor activity. Powered by a rechargeable 12volt lithium-ion battery, the Summit’s large heat zones keep you warm for hours. The Summit can wirelessly change heat on the fly. The Summit Heated Jacket features our exclusive Bluetooth enabled integrated touch control button. Use the MW Connect app to adjust temperature or check battery levels to keep you warm and comfortable all day. The Summit Heated Jacket provides instant warmth when the weather turns cold, keeping you outdoors and enjoying your favorite activity.