The Makita DUR189Z 18v LXT 300mm Brushless Line Trimmer features Makita's Automatic Torque Drive Technology: automatically changes the cutting speed according to load conditions for an optimum operation. The wire guard reduces the risk of damaging flowers/fences/ornaments etc and the line trimmer is foldable for convenience. Features and Benefits: Voltage: 18 v Max Output: 240 W Speed Settings: 3-Speed + ADT Mode No Load Speed: 4,000 / 5,000 / 6000 rpm Spindle Size: M8 x 1.25 RH Cutting Diameter: 300 mm Operating Time 3.0Ah with Battery: 30-90 min Length:1,618 mm Width:258 mm Height: 369 mm Net Weight: 3.0 - 3.3 kg Sound Pressure Level: 78 dB(A) Sound K Factor: 2.0 dB(A) Vibration (LH/RH): 2.5 / 2.5 m/s Vibration K Factor: 0.4 m/s� Bare Tool - No batteries or charger supplied