The HiKOKI RB18DC Blower comes with variable speed trigger and three air volume settings for total control. There is also a lock-on button for continuous use. , Its optimized air duct structure provides the best in class air volume, allowing the user to get the job done more quickly. Bare Unit, NO battery or charger supplied. Specifications: Air Volume Flow (without nozzle): 0 - 3.5m3/min., Max. Air Velocity (with nozzle): 95m/s., Average Air Velocity (with nozzle): 78m/s., Overall Length: 490mm.