The Empire Heated Vest by Volt is taking heated clothing to a whole new level. Featuring our patented Zero Layer Heat System, this vest will heat you right down to the core. This heated vest is being powered with a powerful 10,000 Ah rechargeable 5V USB battery. You will feel heat in 4 zones which include middle of the back, low back and both sides of the chest. Enjoy up to 11 hours of heat on a single charge! This Heated Vest has been awesomely crafted with an ultra tough and supremely warm wool/poly blend shell fabric and ultra soft nylon lining. Smoothly designed metal zippers finish this vest with a look and feel that can be worn in the woods or just around town. The power button is located next to the right hip pocket and it will allow you to choose between 3 different heat settings. Red is the highest setting, Blue is medium and Green is the lowest setting. The Empire Heated Vest by Volt will come complete with a Volt VB5TEN rechargeable battery and USB charging cord. Once you charge the battery, plug it into the vest with the cord located in the right hand pocket. You can then use the rubber controller switch next to that pocket sewn on the outside of the garment to power "on" and to select your desired heat level setting.  FEATURES: External push button controller switch with 3 power level settings Wool/Poly blend  and 200 grams of quilted insulation for unmatched look, feel and fit Includes VB5TEN 5v 10,000mAh USB power bank battery and charging cable the provides soothing heat on high for 5+ hours and up to 11 hours on the lowest setting A large four-panel heating system with chest and back placement Safe & Durable 5v Heating Technology APPROXIMATE HEAT OUTPUT/RUN TIMES: High (RED) = 150º F for 5+ hours Medium (BLUE) = 130º for 7+ hours Low (GREEN) = 115º for 10+ hours EMPIRE 5v Heated Vest by Volt