Ideal for single and multi-pet households looking to automate feeding schedules, control portions to prevent or reverse pet obesity, eliminate food stealing, and better manage pets with prescription diets. (One feeder per pet recommended) Our NEW tag design incorporates a user replaceable battery as well as a NEW Zip-Tie collar mount! We suggest rather than the D-ring, you use the zip-tie option to affix the tag to the collar. (This keeps the tag up and out of water bowls, and it is a more secure method of mounting the tag) PATENTED RFID TAG SYSTEM FOR ACCESS CONTROL: *Does not work with standard microchips* assigns the right pet with the right access at the right time. Our tags have longer range recognition than microchips. (If you are purchasing less feeders than there are pets in the home, we recommend purchasing additional tags to ensure proper access control.) PORTION CONTROL: Each feeder can be customized to measure and serve the proper portions for your assigned pet. The food bin holds 32 cups of DRY KIBBLE, feeding as little as 1/2 cup all the way up to 6 cups per day, automatically divides the daily amount into 2, 4, or 6 meals per day for cats and 2 or 3 meals per day for dogs.