Variable speed, constant speed control, soft start, LED job light. Brushless DC motor with high power to weight and size ratio. Brushless DC motor generates less heat buildup and is ideal for prolonged use in manufacturing/production applications. AWS (Auto-Start Wireless System) uses Bluetooth® technology to communicate between tool and vacuum and enable wireless control when used with Makita AWS cordless tools. Includes: Two 40V Max (4.0 Ah) Li-Ion battery (BL4040), rapid charger, side handle, bit grease, cleaning cloth, plastic carrying case, battery cover.