Robotic Pool Vacuum Cleaner is an automatic solar powered robotic surface cleaner designed for above ground and in-ground pools up to 33 FT in length. With intelligent navigation and ultrasonic radar detection, it detects obstacles in real time and adjusts its route with no manual intervention needed, helping keep your pool surface clean. Built for all-day use, the upgraded solar charging system provides continuous cleaning performance. A single full charge via the adapter can power the unit for up to 12 hours, and it works effectively even on rainy or cloudy days. For thorough results, the robot offers two comprehensive cleaning modes: circulation mode and edge mode. When finished or when the battery is low, self parking technology automatically parks alongside the edge of the pool for easy retrieval. The unit uses a large 4L top-load filter cartridge to capture and lock debris, and the filter basket can be removed and cleaned with a garden hose.