Advantage 1. This product uses food-grade silicone tube, which is safe, environmentally friendly and durable. 2. You can water 1-12 pots of plants at the same time. You can set smart timing watering. 3. Two power supply methods. 1. Battery box power supply, using 4 AA batteries / 2. USB cable 4. Low battery protection. When the battery power is low, the device will issue a warning and slowly stop working to protect itself. 5. Data storage function. After turning off the power, the device is still the data you previously set. Packing list 1. Food grade silicone tube 10m 2. 1 watering device 3. Dripping arrows 12pcs 4. 12 Tee connectors 5. 1 sinking head 6. 1 battery box 7.1m USB power cord 1 8. English manual Q: If I use a battery box, how long can the battery last? Answer: It is powered by 4 AA batteries. If you set it to water once a day, you can use it for about a year. Q: Will the configured hose change color and harden due to the season? Answer: This product uses food grade silicone tube, which is easy to install. It is not easy to change color and harden in winter.