Quiet and fuel efficient 111 cc OHV engine produces 2,200 starting watts and 1700 running watts Produces less than 3 percent total harmonic distortion making it safe for laptop computers, TVs and game systems; Run Time Upto 8.0 at 25 percent Load 1 gallon fuel tank for Upto 8 hours of continuous operation at 25 percent load, USB port allows charging of portable electronics in order to stay connected Parallel connector port allows connection between 2 units for more power; Muffler : Super Lo Tone. Start Type : Recoil At 59 decibels operating volume, it’s quieter than a normal conversation (Sound levels may vary based on proximity and location; measured at ¼ load at 7 meters from control panel side) Can not be shipped to the state of California