【Upgraded 2 LED Lighting &LED Power Dispaly】:Wizpet new pet nail grinder that built-in double highlighted LED light, When grind at night, the 2 LED bulbs help locate the bloodline easily and avoid over-grinding. Besides, the dog claw grinder displays the power by percentage, which can remind you to recharge timely and avoid a sudden power interruption during the nail trimming.【3 Grinding Ports for Small Medium and Large dogs】:This electric nail files with 3 ports to match the small, medium, and large pets.with advanced diamond bit grinder and motor, it can provide faster, more precise, and more comfortable pet claw grinding than manual dog nail clippers,painlessly and precisely trim your pet's nails anywhere，This dog toenail grinder truly is the perfect pet nail grinder for dogs.【Advanced 3 Speed adjustable&Ultra-Powerful Grinder】This electric pet nail grinder has 3 rotation speed settings，which maximum speed can reach 8000rpm, powerful enough to support heavy grinding.【Advanced Rechargeable Battery】: The dog nial grinder adopting USB portable cable with over-charge protection. advanced 2000mAh lithium polymer battery, which supports 3 hours fast charging for 5 hours working time.That's strong enough to get all the job done within few minutes, even for the tough nails of larger dogs.Choosing the appropriate port and speed according to the size of your pet's nails.