Hi, Dear little angel, welcome to Jacenvly, our products are cheap and good quality, price is fair, you can't miss it. If this product is not your style, please click on our store, we have many kinds of products, there will be you like and suits you. If you have any questions about your purchase, please send us the first message, we offer world class customer service to make your purchase without your worries. Have a nice day. Fish Tank Automatic Feeder Intelligent Timing Automatic Feeder Aquarium Goldfish Feeder Large Capacity Fish Feeder Product Description 200ml large capacity food container Enlarge the LCD screen Intelligent control, electronic timing 4 groups of time modes Adjust the number of turns of the knob to control food intake Size: 15*11*7.5cm Power supply: 2 AA batteries, the product does contain batteries Instructions as the picture shows Fish Tank Automatic Feeder Intelligent Timing Automatic Feeder Aquarium Goldfish Feeder Large Capacity Fish Feeder Product Description 200ml large capacity food container Enlarge the LCD screen Intelligent control, electronic timing