This Makita DUR369LPG2 Brushless Loop Handle Line Trimmer 430mm is supplied with 2x 6.0Ah Batteries & DC18RD Twin Port Charger. It's main features include a Brushless motor, an electric brake, soft start and constant speed control. There is also an electronic current limiter for overload protection. It is powered by two 18V Li-ion batteries in series to supply energy to the powerful 36V DC motor drive system. There is a reverse switch, for easy removal of grass clippings stuck, and a handy ergonomic handle bar of off-set design. This brushcutter includes Active Feedback Sensing Technology (AFT) which shuts down the tool if the rotation speed suddenly slows down. It also has Automatic Torque Drive Technology which automatically changes the cutting speed according to load condition for optimum operation.