Features: 1. The 4 in 1 multifunctional pet hair trimmer and nail grinder is ergonomically made and easy to hold, a money saver that is suitable for grinding nails and trimming ear hair, leg hair, facial hair, neck hair, etc. 2. The machine is designed with 3 speeds to suit different needs. The working noise is as low as 60db, which will not disturb your pets and cause any injury. 3. The grinding heads are made of heavy-duty, ultra-thick stainless steel, sturdy and durable, and easy to replace. 4. Convenient cordless design can deliver smooth trimming and grinding experience. 5. The inbuilt 800mAh battery can provide 180 minutes of continuous use after the device is fully charged. 6. The electric nail file is USB rechargeable, which can get charged from a USB adapter, PC, Desktop, Power Bank, etc.