STRONG WEED WACKER BATTERY OPERATED: The electric weed wacker uses 800W high-power pure copper motor, which can effectively dissipate heat and last long-term operation.2 high-efficiency 21V 4.0 lithium-ion battery, providing sufficient power. The dual control switch design is safer. The 150 ring guard protects you from high-speed rotating saw blades while reducing the interference of weed flying. The detachable wheels save a lot of effort when used, making weeding as easy as walking CORDLESS AND BATTERY POWERED: Say goodbye to tangled wires and limited mobility,This weed cutter gives you the freedom to walk around the yard. 2x4.0AH large capacity battery design (1 battery + 1 spare battery, can work continuously for at least 40-60 minutes), the 4.0AH battery is equivalent to two 2.0AH batteries, providing longer running time for the stringless weed wacker. The battery interface is a universal interface, which can be easily replaced with different brands of batteries ADJUSTABLE HEIGHT AND ROTATING HEAD: The head of the electric weed wacker can be adjusted by 90 , easily solving the dead angle problem, and adjust the head angle with one click according to the weed environment.