1High quality grinding head, considerate design, wide application, more options for grinding armour. 2Care of the cat's glass heart, low vibration and low noise, cats more acceptable. 3Using more secure, intelligent IC chip real-time control charging and discharging process, charging protection. 4Vase aesthetic design, and appearance level performance in a suit. 5ABS environmental protection material, environmental protection without peculiar smell. 6Indicator light shows, at a glance, novice can easily grasp. Specifications: Shell material: ABS environmental protection material Type of grinding wheel: changeable grinding wheel Model: M1 Charging time: 1.5 hours Charging method: USB charging Power: 2W Voltage: 5V Suitable for pets: dogs and cats Package Included: Grinding machine *1 USB charging cable *1 Manual *1