Button function: Supports Fixed time and quantity: The feeding time can be set at a fixed time, with each portion weighing about 8g. A maximum of 9 portions can be fed at a time, which means the maximum feeding amount per time is 63g. Recording and shouting: Record a 10 second human voice to guide pets to pay attention. Rated voltage: 5V 1A (power adapter preferred) Backup power supply: Supports 3 No. 1 dry batteries, not included in the package Comes with a 5L capacity grain storage box. 3L capacity circulating water tank.