Features: Brand new and high quality Using high-power motor, constant temperature technology, stable performance during high-intensity work, even if you work for a long-time, you will not feel fatigue. The outer is made of high-quality materials to prevent the machine from aging. High quality pure copper core motor provides strong suction and windpower Ergonomically designed, handle is non-slip, and will not hurt your hand after long-term use. 13000-16000r/min wind speed adjustment, apply more scenes. Specifications: Material:Plastic Plug:EU/US Battery: 18V 4000mah Rotational speed: 13000-16000 r/min Duct diameter: Approx.3.3cm/1.3inches Charger parameters: AC100V-240V 50/60Hz output: 21v1.5A Size:Approx.50x18x16.5cm/19.68x7.08x6.49inches Note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1 Set Cordless Blower