Lefant robot vacuums only support 2.4GHz WiFi. It is recommended to switch to a 2.4GHz network when using the robot by following your router's setup instructions. NOTE: Before first use, please open the cover, switch the little button to 'I,' and ensure the robot is turned on and fully charged. The Lefant cleaner robot has four cleaning modes: automatic, planning, fixed point, edge, and the planning the cleanup trilogy can carefully clean every corner of your home. It features a unique suction mouth and powerful suction, removing the bottom roller brush and adopting the large suction door design to clean hair powder and reduce hair cleaning problems with close to 90% cleaning efficiency. The compact body has a 500 ml large dust container, holding more waste and reducing the amount of vacuuming. Its small body design, with a one-piece body, 28cm in diameter and 7.8cm thick, is designed for narrow spaces in beds, sofas, and corners to avoid snagging, with high coverage and a low failure rate. It has a long battery life with up to 120 minutes run time and automatic return to the charging station. FreeMove 3.0 Technology uses built-in 6D anti-collision infrared sensors for omnidirectional detection, easily avoiding obstacles and reducing failures. It can detect stairs to prevent falls and climb carpets. Carpet Boost optimizes cleaning for carpets by intelligently identifying them and increasing maximum suction power for optimal performance. Easy operation: Press once to start/pause, press twice for auto return & charging, and hold for 6 seconds to enter Wi-Fi pairing mode. Lefant recommends regularly cleaning the docking station electrodes and replacing the side brushes and HEPA filter every 1–2 months.