Upgraded Electric Weed Wacker Our cordless weed wacker battery operated has passed the professional design and safety test. The cordless grass trimmer has been upgraded with smoother wheels, higher-strength blades and larger-capacity batteries. We have completely solved the problems of the old string trimmer, such as wheels failing to turn, blade breakage and short cutting time. Two modes (wheel on/wheel off) can be switched freely, allowing you to mow your garden and yard lawn more easily. Multi-Function Electric Weed Trimmer The electric weed wacker cordless with wheels all in one: grass trimmer/ lawn edger/ small mower/ brush cutter. Not limited by power cord, you can use it anywhere.