Powerful 52cc EPA compliant engine , 2 stroke ,power (kw, r/min): 1.6/7000, fuel tank 1.5L, box volume: 14L, Multifunction 3 in1 ,Powerful Backpack Sprayer, Mister, Duster, Leaf Blower, Mosquito Sprayer Widely application,This knapsack spray dust collector is widely used in large farms and orchards, and has a very wide range of applications Easy to Use,Easy to operate, the plastic structure of the fan housing makes it more portable and more convenient to use High efficiency: Spray 1 acre in less than 30 minutes for Bugs, Weeds, Fertilizer, and More. 7X Faster than Pump Sprayers. Product parameters: Product Size:19.7*60.2*27.6inch Box capacity:14L Engine horsepower: 2.2HP/1.6kw Engine capacity: 52cc Maximum engine speed: 7000r/min Mixing ratio of oil and gasoline: 40:1 Noise level 111db Liquid spray volume: 0-4L/min Powder spray volume: 0-6L/min Flat spray range: 15-20m High spray range:13-15m