These two are a great combination. The feeder (PF-10) will allow you to feed multiple times a day and at various amounts. You can even record a message for your furry friend like "Come and get it kitty, chow's on". The message will be played at each feeding. The unit is powered by 4 D batteries that last quite a long time. It has complete instructions. I'll admit the instructions are not the best, but follow exactly and you'll do fine.
The water fountain is a 50 oz petsafe drinkwell. It has charcoal filter and adjustable stream. It's power by a quiet motor that uses a small plug in power supply. We thought our cat would be crazy for this since he loves drinking out of a running faucet. He looked at it and just was not interested and still prefers a faucet. Crazy cat!!