Patented design and Veterinarian recommended * Automatic Pet Feeder works with all types of small pets. Has a compact and pleasing design and can be ikept anywhere in home * Airtight lid on storage container keeps food fresh. Has a detachable storage container for easy cleaning. Additional stackable food storage containers are also available to increase storage capacity * Electronic Mini Feeder comes with bowl. The feeder works with four ?C? batteries and may also be used with a transformer * The feeder features a digital timer with battery backup for programs. The timer allows 8 programs per day of your choice