Stihl Advance X Vent Helmet Set Battery & Electric mower guaranteed (LWA) 113 dB(A) Vibration Battery Shears guaranteed (LWA) 113 dB(A) Vibration Equivalent vibration level (ahv 9 m s2 Total length 184 cm 3) Cutting diameter 420 mm Standard cutting tool AutoCut C 26 2 Recommended battery AP 300 S Working time with AP 200 with metal cutting blade up to 50 min 4) Working time with AP 200 with mowing line head up to 28 min 4) Working time with AP 300 battery up to 70 min 4) Working time with AP 300 battery (2) up to 36 min 5) Working time with AR 2000 L with mowing line head up to 160 min 4) Working time with AR 3000 L with metal cutting blade up to 430 min 4) Working time with AR 3000 L with mowing line head up to 220 min 4) Cordless power system AP System Protection type EN 60 529 IP20 The sturdy spring steel mesh visor allows up to 80% light visibility for a protected and clear view face protection