Super Strong Quiet Motor - Dog Nail Grinder uses a brass bearing motor, Has the characteristics of low power, fast rotation (7500prm), low noise, low vibration. During operation, the decibel of noise> 60 so that your pet will not afraid to trim nailsPowerful Grinding Wheel - pet nail grinder wheel made of emery can quickly and safely trim your pet's nails USB Charging - dog nail trimmer is equipped with 600mA Ni-MH battery, and it is charged by USB. After the battery is fully charged, it will automatically cut off power. can be charged for 3-4 hours and can last for use 3 hours the aboveThree Size Ports - There are three size openings in the grinder area; you can use depending on your pet's nail size. the small and medium openings are for small and medium size pets. For larger pets, the entire cover can be removed to expose the entire bit to easily trim large nailsEasy To Clean - This pet nail grinder is easy to clean, you can use a clean brush to clean the dirt around the head of dog nail grinder.Dear Sir and Dear Madam: Welcome to my little shop, I am honored to meet you here. No matter how many times you come to my store, I will serve every customer with all my heart. I very much hope that there are products in my small store that can help you and provide your pets with a better living environment and more comfortable living conditions. If you don't understand something about the product, please give me a chance to answer your questions.