Worx 20V Grass Trimmer and Blower Combo Kit with 2 Batteries Lithium-Ion battery technology: long life, no self-discharge, light weight, no memory effect Ultra lightweight compact design Convert trimmer easily to an edger and vise-versa in seconds Blower/Sweeper great for hard cleaning hard surfaces Grass Trimmer and Sweeper part of Worx 20V Power Share Battery Platform