• Reduced-emission engine technology - 2-stroke engine with stratified charge. A fuel-free layer of air is created between the burned charge in the combustion chamber and the fresh charge in the crankcase, reducing the amount of fuel lost during the charge cycle. This results in more power with a lower weight, up to 20% lower fuel consumption than regular 2-stroke engines and significantly reduced exhaust emissions.
• Catalytic converter (D) - Considerably reduces the quantity of harmful particles in the exhaust gas.
• Manual fuel pump (purger) - A small fuel pump delivers fuel to the carburettor at the touch of a button. This reduces the number of starting pulls required following extended breaks in operations.
• STIHL ErgoStart (E) - A genuine advance in easy starting. STIHL ErgoStart (E) cuts the effort required to start the tool by half, while the starter cord can be pulled at just one third of the normal force. All it takes is 2 fingers and a gentle pull action.
• Multi-function control handle - This houses all the engine controls. Easy, comfortable thumb-operated control means the operator's hand never leaves the handle.Integrated shoulder strap for vacuum bag
• Integrated shoulder strap for vacuum bag - The integrated shoulder strap makes vacuuming for long periods of time less tiring. Allowing for much more movement whilst helping to support the weight of the collection bag.

1) Without fuel in the vacuum operation 
2) K-factor according to DIR 2006/42/EC = 2.5 dB (A) 
3) K-factor according to DIR 2006/42/EC = 2m / s ² 
4) In the vacuum operation