1. Mini shape, space-saving.2. Patented features - No jam, no clog and no fuss.3. Quick settings and easy-of-use.4. Can be operated automatically or manually.5. Can Set up to 2 feeding times: 12H or 24H.6. Works with dry or loose flakes or pellets.7. Manual food volume adjuster.8. Has a built in digital clock for accuracy.9. Ideal for various sizes of aquarium with two options of placing the food feeder on acquarium: free standing or rim-mounted.10. Extremely low power Specifications:Color: Black.Housing: Plastics.Type of battery: 2 x AA alkaline batteries (not included).Size:10cm x 11cm x 7.5cm. Package Includes: 1 x User Manual 1 x Automatic Fish Feeder