I've been using this for about six months, but I'm no longer using it, so I'm putting it up for sale. Please purchase only if you understand that there are some minor scratches and that the original cardboard box and instruction manual are not included. As for how to use it, it's explained on the Animal Water website, so you can use it without any problems by referring to it. [Animal Water®] was developed in collaboration with veterinarians to improve and solve the following issues: the risk to life from periodontal disease in dogs and cats, the burden on the body from dental scaling (under general anesthesia), the financial burden of surgery costs, and the burden on owners such as brushing their pets' teeth. - Model Name: Animal Water III - Voltage: 100V 50/60Hz - Power Consumption: 3W - Function: Automatic water supply function Thank you for looking.