The Powerhouse PH3300i is the most feature packed 3300 Watt inverter generator on the Market! Exclusive InverterProtec technology shuts down the inverter when overloading but keeps the engine running. The powerful yet compact engine has the most horse power in its class at 6.4hp. Smart USB ports monitor the charge of the device your plugging in and trim back power once it's full to avoid overcharging. Included are a 30 amp generator adapter, oil jug, spare spark plug, a plug wrench and screwdriver, a 12 volt charging cable, and more! The Powerhouse PH3300i gives you outstanding quality at an unbeatable value.