2 FUNCTIONS: LEAF BLOWER AND VACUUM; AIR SPEED MAX. 230 KM/H; SHREDDING LEAF FUNCTION, VOLUME COMPRESSION 8:1; MAX. FLOW FOR AIR 8M3/MIN; VARIABLE SPEED OF MOTOR 6000-12000 RPM; VOLTAGE 36V- 18V*2; FITS FOR ALL YATO 18V SYSTEM BATTERIES YT-82842, 3, 4, 5