The Mobile Warming Dual Power Heated Jacket is designed for riders who want to enjoy heat either on or off their motorcycle. The Dual Power Jacket combines our best performance materials and heating technology. The Dual Power jacket uses Windshark, a water resistant and wind-proof outer shell that incorporates the latest in 12volt heated apparel technology. Choose between two power modes; either tie into your vehicles 12volt electrical system or use the portable, powerful Lithium-Ion battery for those times you are on the move. When conditions get cold simply turn up the heat! With the touch of a button power up the heated jacket to make sure you stay warm and comfortable for hours on or off your motorcycle.