Feature: 1. SILENT OPERATION: Pet dog nail grinder features a superior motor and silent technology that operates at less than 50 decibels and won't scare your pet. 2. LONG LASTING TIME: The pet dog nail grinder is USB charged with an indicator light for added convenience; 2 hours charging time and up to 3 hours use time. 3. SAFE AND RELIABLE: Dog nail grinder is safer and reduces the risk of cutting the claws too short or hurting your pet. 4. ERGONOMIC DESIGN: Dog nail trimmer creates a smoother, rounder nail tip. Lightweight and ergonomically designed to save effort. 5. WIDELY USED: Pet nail clippers are perfect for pet grooming shops or home use, equine grooming supplies. Specification: Item Type: Pet Nail Grinder Material: ABS Parameters: Battery Type: Nickel Metal Hydride Battery x 2, Battery Type: AAA, Battery Capacity: 800mAh (Shipped with Built in Battery) Suitable for large pets: 1. Please choose the appropriate port according to the characteristics of your pet's nails, as needed. 2. When grinding nails, please gently place your pet's nails into the nail grinding holes. The grinding time should not be longer than 5 seconds each time. 3. If using the nail grinder for the first time on a pet, it is recommended to grind sharp or long nails. Pet safety comes first. Please take care not to grind too much to allow your pet to get used to the nail grinder. When nail grinding becomes less effective, please clean the surface of the nail grinder of any impurities.. Package List: 1 x Pet Nail Grinder1 x Charging Cable 1 x Manual