Easily removable large 400 ml dirt container for fast cleaning. Includes HEPA filter (high efficiency particulate air filter). Battery running time is approximately 120 minutes. Battery charge time is around 3 hours. The auto return function allows the robot to automatically return to the charging station upon completion of the program or when the battery is low. With the auto resume feature, the robot continues cleaning from the last position after recharging. It has automatic staircase detection and obstacle detection via infrared sensor technology. There is an additional mechanical protective barrier for sensitive furniture and door frames. The device operates at a low noise level of approximately 61 dB. It features a high-quality LED display with sensor touch operation. Includes multifunction remote control with timer function, individual control, and recall to charging station.