The br 800 is stihl’s most powerful backpack blower to date. Designed for everyday use, the br 800 is the ideal machine for professional users working on large grounds. The blowers ergonomic backpack design spreads the weight evenly across the user’s shoulders and back. Stihl br800 featuresstihl 4 mix engine is designed to work for longer periods with reduced fuel consumptionuser friendly starting system with semi automatic choke leverbuilt in engine stop switchs shaped backpack design with shoulder and chest strap plus hip beltmulti function adjustable handlerubberised control handle for comfort and secure gripanti vibration system the blower has maximum air speed of 216mph when using the round nozzle. The 41 n blowing force can blast away piles of wet leaves, debris and is even strong enough to move gravel and small rocks. The 200 litre fuel tank can work for periods up to 79 minutes on a full tank.the stihl br800 has an adjustable multi function handle which combines all the controls within easy reach. For minimum downtime there is a built in stop switch to turn off the engine, when the engine is switched off the throttle lock automatically returns to the start position for a quick restart. Other practical features include a height adjustable blower tube, handy wall hanging slot and stowaway hook for securing the blower tube to the unit.specificationengine spec 79.9cc, kw 3.2, hp 4.4fuel tank 2 litres2 litre fuel 78 minutes run timeblow force 41 naverage air speed 181 mphmax. Air speed with round nozzle 216mphsound pressure level 104dbasound power level 112dbavibration level left 2.9m s² vibration level right 2.3m s²weight 11.7kgwarranty manufacturer’s domestic 2 year, commercial 1 year