Oregon Cordless CS300-A6 Chainsaw Kit with 4.0 Ah Battery and ChargerBrand: Oregon Color: Gray Features: PowerSharp System Sharpens on the saw, on the job, in seconds. From dull to sharp in as little as three seconds Brushless Motor High performance; high torque and power for fast cutting with a 16" (40cm) bar Includes Tool less tension system Instant Start No gas oil mixing, No pull cords, No warm up & No emissions 40V Max Lithium Ion power for 66% more run time over the CS300 E6 Chainsaw Premium cell technology means