This Blower / Vacuum has 3 air volume settings: Low, Medium, High for maximum control The Makita DUB186RT is a Blower and Vacuum powered by an 18V Li-ion LXT slide type battery. The machine has 3 air volume settings for low, medium and high, with a variable speed which is fine-tuned by the trigger. This can deliver up to 18,000 rpm, 98 metres per second maximum air velocity. The DUB186 can be changed to a vacuum with 5.8 kPa maximum sealed suction for a faster clean-up. It becomes a vacuum by attaching the blower nozzle on the side and using a dust bag (not supplied). Supplied with a DC18RC Charger and 1 x 5.0Ah Battery in a cardboard box. Features: Variable speed control by trigger 3 air volume settings: Low, Medium, High Increased air volume Compact and lightweight design Ergonomic soft grip Equipped with Battery protection circuit: designed to protect the battery from damages due to over-discharge, high temperature or overload current Comes With: 1 x 5.0Ah Battery DC18RC Charger  Long nozzle Specification: Battery Type: Lithium-ion Voltage: 18V Battery Quantity: 1 x (5.0ah) Max air velocity: 68 m/sec Max air volume: 3.2 m³/min Air volume setting dial: 3 settings Noise sound pressure: 82.5 dB(A) Noise sound power 92.4 dB(A) Noise K factor: 2.8 dB(A) No Load Speed: 0 - 18,000 rpm Vibration K factor: 1.5 m/sec² Vibration no load: 2.5 m/sec² Net weight: 1.6 - 2.1 kg