Powerful 4500RPM Brushless Motor: Equipped with a high-performance brushless turbo motor, this nail dust collector delivers 100% dust collection efficiency. The 360° suction ensures every speck of nail dust and debris is captured, this dust collector nail tech creates a clean and fresh environment, ensuring a healthier, more enjoyable experience for you and your clients. Adjustable Suction in Low Noise: Our newly designed nail vacuum dust collector offers adjustable speed settings, making it user-friendly and ideal for beginners. Turn the knob clockwise to turn on the machine.the regular version of 0~10 gears can be adjusted:sports version of 0~10 gears and 15 gears can beadjusted.（Long press the knob 2 seconds, the gear directlyjump to the highest gear (15). Continue to work for 30minutes will automatically exit the 'sports mode"） Rechargeable & Portable: This heemeei cordless nail dust collector is equipped with a upgraded 4000mAh large-capacity battery, which only takes 2 hours to fully charge and can be used for 4-5 hours. It is very convenient to use it cordless anytime and anywhere. The best choice for nail art.( Tips: If you always use the highest gear (15), the endurance time will be shortened.) Professional Efficient Heat Dissipation and Reusable Filter: The reusable fine filter is easy to clean with a blow dryer or dust brush. Replaced it every 3-4 months for optimal performance, the built-in washable filter not only reduces waste from disposable filters and lowers operating costs, but it is also more environmentally friendly.Ventilation holes on the bottom and around with persistent heat dissipation function, make sure the nail dust vacuum will not get hot even doing the long-lasting work. Aviation Aluminum Magnetic Cover: This magnetic cover is made of aviation aluminum, it has the characteristics of hardness and high stability. Such as alcohol corrosion resistant, scratch resistant, not easy to deform, etc. In the boot state, if the filter out or filter installation isnot in place, the fault indicator will keep fashing andcontinuous "tick" sound to protect the safety of users and machines 100% Satisfaction Service: You'll receive 1 x nail dust collector, 2 x reusable filter, 1 x dust brush, 1 x charging cable. Should you face any issues, don't hesitate to reach out via your Amazon account. We will solve the problem for you as soon as possible heemeei Nail Dust Collector, Professional Cordless Dust Collector Nail Tech & 2 Pcs Reusable Filters & Nail Dust Brush, Rechargeable Powerful Dust Suction Machine for Acrylic Gel Polish Manicure Salon