About This Ultra-High Speed: Suitable for nail lovers and nail technicians, perfect for shaping artificial nails, smoothing calluses, polishing nails, cleaning free edges, shaping natural nails, cleaning cuticles, filling and removing products Professional and Efficient: 0-35000 RPM stepless speed regulation function meets different nail needs, improves work efficiency and serves more customers; forward and reverse rotation direction design is suitable for any right-handed or left-handed use Upgraded long battery life: Equipped with a 2000 mAh rechargeable large battery with top energy efficiency. Fully charged in just 3 hours, it can be used continuously for up to 12 hours. LCD screen displays speed and battery capacity for easy operation Safe and Durable: Equipped with durable high-torque motor with low vibration, low noise and low heat. Aluminum alloy shell with high temperature resistance and mechanical locking system,anti-slip design and ultra-light handle for fatigue-free operation Professional Service:We have a 24 hours customer service. If you find any issues with the product, kindly contact the seller first Overview Brand : AIRSEE Model Name : G7 Power Source : Battery Powered Battery Life : 12 Hours Maximum Rotational Speed : 35000 RPM