1.1. Compatible Batteries: The Blower is suitable for Milwaukee M18 18V Li-ion batteries, such as M18 48-11-1852 48-11-1840, 48-11-1815, 48-11-1820, etc. 2.2. 4-Wind Speeds Switching: Please press the button on the side of the machine to adjust the 4 air speeds: 8M/S, 17M/S, 25M/S, 30M/S according to your needs at any time.The maximum wind speed is up to 130,000RPM, please feel to switch the wind speed according to your needs. 3.3. Wide Range of Uses: It is versatile great for indoor, outdoor, garage. Used for computer dusting, keyboard dusting, leaf blower, corner dusting, cleaning snow falling from cars, BBQ blowing to fuel the fire, clothes drying. 4.4. and Light: The jet blower is compact and lightweight and can be carried easily. So it's perfect for outdoor work, camping, barbecues and more. Note: 1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours Hope you have a pleasant shopping experience!