Compatible with any 5-volt battery, ActionHeats Mens 5-Volt Heated Vest lets you harness the power of warmth. Comes with a rechargeable Power Bank battery that not only delivers heat to your core, but also charges your USB-charged electronics. Heating panels incorporate ActionFlex technology that allows you to maintain your full range of mobility, while FAR infrared heating and ActionWave reflective technology maximize heating efficiency. Three modes deliver optimal heat for your needs. Runs up to three hours on high while providing up to 135F of heat, runs up to five hours on medium while providing up to 120F of heat and runs up to 10 hours on low while providing up to 90F of heat. Imported. Sizes: S-2XL. Color: Black. Type: Vests.