Description: With its adjustable slider, you can set the size of the portion. Automatically feeds your aquarium whether you are in town or on the road. Simple operation and installation, can be operated automatically or manually. You can adjust the feed lever to regulate the amount of food dispensed, up to 4 feeding times a day. Moisture-resistant hopper keeps food fresh and accommodates most types of food, including flakes, pellets or crumbles. Specification: Material: plastic. Size: 10*11.5*4.2cm. Color: show as pictures. Power supply: 1.5V 2 * AAA battery (included). Note: There might be a bit color distortions due to different computer resolutions. There might be a slight error due to different hand measurement. Package included: 1 * Digital LCD Automatic Fish Feeder.