Rechargeable Battery Built-in – Built-in 2200mAh lithium battery eliminates the need for replacing batteries or寻找电源插头. This self-contained system can be freely moved around your yard or home. Once fully charged using the included USB to Mini USB cable, it operates for up to 2 months. After that, simply recharge for 5 hours to resume operation for several more months. Easy to Set Up – This watering system is simple to configure. Set the watering duration from 1 to 90 seconds or 2 to 3 minutes, then choose the watering interval from 12 hours or 1 to 10 days. Ideal for maintaining plants while traveling or managing daily watering tasks. Automatic Watering – Ensures consistent watering at scheduled times, promoting healthier and longer-lasting plant growth while simplifying your routine. Efficient Water-Saving Design – Combines precise timing and pump control to deliver the right amount of water from a water bucket or tank to up to 4, 8, or 12 potted plants. Saves up to 70% water compared to traditional spray methods and irrigation drippers, improving efficiency and conserving resources.