Easy to Use---The handle of our dog nail grinder is made of eco-friendly rubber, comfortable to handle and relieve hand pressure. It uses a superior quiet motor (less than 50 DB) so it won't scare your pets. NOTE: In general, most pets do very well when grinding their nails. 2 Speed Switch & 3 Grinding Ports --- The dog nail clipper features an adjustable design , low/high speed, powerful enough for heavy duty grinding. With 3 ports to match small, medium or large pets, choose the appropriate port and speed according to your pet's size and nail hardness. Safe and Effective- -- Our dog nail grinder uses an advanced diamond grinder to provide the safest and most comfortable pet claw grinding. Don't worry about the risk of cutting the nail too short which could hurt your pet. Trim your pet's nails painlessly and precisely anywhere. USB Rechargeable & Portable --- The painless pet nail grinder is rechargeable and has an indicator light bright below. It has a built-in battery that lasts for 4 hours after charging for 2.5 hours. The lightweight and ergonomic body design also makes it easier to handle. Suitable For Pets Of All Sizes --- The pet nail grinder has 3 ports for nails of different sizes. It is suitable for dogs, cats, rabbits, birds and other pets.