String Trimmer - DCST925. 20V MAX 4.0 Ah Li-Ion Battery - DCB204. Charger - DCB115. 0.080 in. Line prewound in spool. 13 in. Cutting Swath with 0.080 in. Line. Gear drive transmission design that powers through overgrowth. Variable trigger with high/low speed control for added power or extended runtime. Lightweight, ergonomic and balanced design will help you move freely. Part of the 20V MAX system of tools