By connecting the device through Bluetooth communication, the following functional operations can be performed on the device: 1. Manually controlling the solenoid valve; 2. Query the remaining working time, battery voltage, and rainfall status of the current device; 3. Set timing and watering duration according to daily and weekly types; 4. Query timed and manual watering records; 5. Synchronize the device clock; 6. Currently supports switching between three languages.