I purchased this in August with the intention of using it on my pet, and I charged it, but my pet ran away just at the sight of it, so it's unused. Please purchase only if you understand this. I'm selling it at a low price, so how about it for those who want to try it out like me? The following description is from when I purchased it: 【LED Lighting】Built-in LED light allows you to easily illuminate every corner of your pet's teeth, making it easy to remove stains. 【4 Adjustable Modes】The tooth cleaner has 4 cleaning modes: soft mode, standard, medium, and powerful. You can select the appropriate mode according to the actual situation. (It is recommended to start with the "soft" mode for the first use.) 【IPX7 Waterproof】Can be washed with running water, safe and convenient. It is recommended to wipe off any remaining water after use. Designed with a one-button operation for ease of use. 381 【Safety】Hofiwi tooth cleaner only activates when it comes into contact with your pet's teeth, and does not vibrate when it touches gums or soft objects. 【USB Rechargeable】Supports Type-C charging, 2 hours of charging allows for 3 months of use. Charging is more convenient and faster. Note: Please charge the product first after receiving it before using it.