2 ADJUSTABLE SPEED & 3 PORTS: 2-speed of power is adjustable enough to support heavy grinding. 3 types of nail grinding could be suitable for large, medium and small pet, you can choose the nail trimmer port according to the different sizes of pets and the hardness of the nailsLOW NOISE & SAFE: - Our dog nail trimmer are built with an advanced diamond bit grinder that delivers superior control and precision. Noise levels are very low and the gentle vibration does not startle petsPORTABLE & LIGHTWEIGHT TO USE: This dog nail grinder is easy to hold and operate. Allow for a smooth and convenient grooming experience. Ideal for dogs, cats, hamsters, guinea pigs, rabbits, and birds, etcRECHARGEABLE & CORDLESS: Dog nail clipper is cordless design, allowing you to freely move in any direction. With the cordless clipper, you can no longer be bothered by the trouble of replacing batteries or boring wires, but aslo available for using cord