Feature: 1. The pet nail grinder uses diamond bit grinder so that it is safer and more effective, reducing the risk of pinching too short or injuring the pet. 2. This pet nail grinder has three grind ports and two gear speed, which is widely used for small and medium pets with different nail sizes. You can choose the appropriate port and speed for nail polishing according to the size and nail hardness of your pet. 3. The pet clipper is equipped with a precision motor and low-vibration design, which protects it from working noise below 50DB, helping pets feel relaxed and making your pets fearless to trim their nails. 4. The USB-rechargeable pet clipper is equipped with a USB interface cable, which can be easily connected to a laptop, AC adapter or power pack. It can supply pet nail grinders anytime and anywhere, without the need to replace the battery, which is very convenient to use. Specification: Item type: Electric Pet Nail Grinder Material: ABS Color: Black Power supply: USB charging Charging time: 2h Running time: 3h Input: AC100V-240V 50Hz / 60Hz Output: 5V / 800mA Size:15.5*4*4.5cm Note: 1. For pets safety, you should not continue to grind for more than 5 seconds and adjust the combing angle to polish your pet's nail. And each grinding time should not exceed 5 minutes. 2. If the pet is using the nail polisher for the first time, it is recommended not to trim the pet's nail too much to avoid bleeding. Package included: 1 x Pet Nail Grinder 1 x Charging Cable 1 x User Manual