【Safety】After turning on the power, ultrasonic vibration does not occur when it comes into contact with gums or soft objects. Ultrasonic vibration occurs after contact with teeth or hard objects, and you can clearly feel the product working! 【Easy Operation】Designed with a single button to simplify operation as much as possible. Suitable for almost all pets, such as dogs and cats. For both cats and dogs. Also applicable to puppies, extra-small/small/medium/large dogs. 【USB Rechargeable】Supports Type-C charging, making charging more convenient and faster. Note: Please charge the product before using it after receiving it. 【IPX6 Waterproof】With IPX6 waterproof level, the device can be washed directly, but avoid rinsing the charging hole with water. Wipe off any remaining water after washing.