Automatic Torque Drive Technology: RPM is automatically shifted between 4,000 - 6,000 minˉ¹according to density of weeds. This allows for better energy saving and lower noise levels 3-Speeds - manually selected Speed indicator on control panel shows 3x RPM levels, plus status of overload, overheat and over-discharge Brushless motor Reverse switch for grass clipping removal Lightweight design with excellent tool balance for easy handling during operation Trigger switch with lock-off lever High power and long run time Wire guard reduces risk of damaging fences, flowers or ornaments: Foldable for convenience