The RYOBI USB Lithium Heated Cushion delivers year-round comfort with a 3" cushioned seat, cold-weather heating and built-in mobile device charging. Free from cords, you can bring warmth anywhere with the included USB Lithium batteries and power source. Three heat settings (high, medium & low) reach up to 150º F & allow you to customize the temperature based on your heat preference. Stay warm for up to 5 hours when using both USB Lithium 2Ah batteries on low. Utilize the included power source with either 1 or 2 USB Lithium batteries to heat the cushion or charge mobile devices. This power source also features an LED indicator to signal when the battery(ies) are charged (green) or low (red) while in-use. The convenient carrying handle makes transport easy so you can bring this cushion wherever life takes you. Best of all, it is part of the RYOBI USB Lithium System of tools that provides compact, rechargeable, everyday solutions for cordless power and productivity. The USB Lithium Heated Cushion is backed by the RYOBI 1-year manufacturer’s warranty, 2-year battery warranty and includes (1) FVT51 USB Lithium Heated Cushion, (1) FVP01 USB Lithium Power Source, (2) USB Lithium 2Ah Batteries, (1) USB Charging Cable and Operator's Manuals.