Description Ideal for making quick work of small to mid-sized lawns with a brushless motor featuring ECO mode for maximized run time and a high-volume grass bag. Technical details Cordless power system AK Drive — Recommended battery AK 30 S Device weight without battery 55.1 lb Cutting height 25-100 mm Rated speed of sweeping attachment 3200 rpm IPX Rating IPX4 Max. area per battery charge AK 10 105 m² 1) Max. area per battery charge AK 20 210 m² 1) Max. area per battery charge AK 30 275 m² 1) Max. area per battery charge AK 30 S 275 m² 1) Grass catcher box volume 55 l Device width without attachments 52 cm Max. device height 118 cm Front wheel diameter 200 mm Rear wheel diameter 250 mm Measured sound pressure level LpA 85 dB(A) Sound power level, guaranteed LWA 96 dB(A) Uncertainty factor, sound pressure level KpA 3 dB(A) 2) Vibration, guide bar, ahw 1.60 m/s² Vibration uncertainty K 0.80 m/s² 2) Hazard Warnings General Power ToolImproper use of any power tool may cause serious or fatal injury. Read, understand, and follow carefully the operating and safety instructions in your instruction manual before using such products. STIHL products sold through U.S. STIHL Dealers are for distribution in the United States only. Improper use of any power tool may cause serious or fatal injury. Read, understand, and follow carefully the operating and safety instructions in your instruction manual before using such products. STIHL products sold through U.S. STIHL Dealers are for distribution in the United States only. Proposition 65 – EnglishThis product contains chemicals known to the State of California to cause cancer and reproductive harm. www.P65Warnings.ca.gov