Rechargeable Battery Built-in – Built-in 2200mAh lithium battery eliminates the need for replacing batteries or finding a power outlet. This fully autonomous 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 for continued use. 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. The automatic watering device delivers water on schedule, promoting healthier and longer-lasting plant growth while simplifying your routine. Efficient Water-Saving Design – The automatic plant watering system combines precise timing and a reliable pump 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% more water compared to traditional spray methods and irrigation drippers, offering efficient performance that conserves both water and time.