Engine Type: High-performance 35.8cc 4-Stroke Petrol Engine. Unlike noisy 2-stroke options, it features a separate oil reservoir, meaning it does not require mixing oil with petrol. It operates with lower emissions and better fuel efficiency.Tank Capacity: Large 25-Liter chemical fluid tank.Pressure System: Motorized duplex plunger pump delivering consistent, high-pressure micro-spray coverage.Design: Ergonomic padded backpack harness system to minimize user shoulder strain over prolonged farm hours