HUSQVARNA 550iBTX BATTERY AND BATTERY CHARGER EXCLUDED Technical data: Battery voltage : 36 V Battery type : Li-Ion Air flow at nozzle : 12. 8 m/min Air velocity : 54 m/s Air velocity (round nozzle) : 54 m/s Guaranteed acoustic power level (LWA) : 94 dB(A) Measured power level : 93 dB(A) Sound pressure level at operator's ear : 73 dB(A) Motor type : BLDC (brushless) Product dimensions WxDxH : 145 x 60 x 68 cm Tube diameter : 71. 2 mm Weight without battery : 6.3 kg BELT AND FLAT BATTERY INCLUDED BACKPACK BATTERY NOT INCLUDED