Up to 5.5 hours of runtime on low setting using the 20V MAX** compact 1.5 Ah battery. 4 heating zones which include l&r chest, mid-back and collar. LED controller with 3 temperature settings. Premium 20V MAX** batteries stored in an efficient battery pocket. USB power source with 2 USB power ports. Battery pockets expands to accept DEWALT® XR® 4.0 Ah battery packets. Includes: DCHJ060 heated jacket, dcb091 USB power source