The 40VMAX XGT BL ADT AFT Cordless 3-Speed Grass Trimmer with Bike Handle and 2x 2.5Ah Batteries, does exactly what it says in the name, with efficiency, safety and comfort all built in. The bike-handle design allows the grass trimmer to become an extention of your arms, giving you increased control and precision. When combined with the soft start feature, 3 speeds, easy-view smaller protector and constant speed control, you know that you can access all areas easily and effectively with this powerful and cordless brush cutter. In addition to these features, the Makita Grass Trimmer has Active Feedback-sensing Technology that shuts down the tool immediately, should rotation speed drop suddenly, as well as Automatic Torque Drive technology, that changes the cutting speed according to the load condition. In combination with the extremely low noise, reverse switch for easy grass cutting removal and brushless motor (to increase battery efficiency), your day tending the grass in the sun will be an absolute joy.