This item is junk due to the following reasons: ・Unable to return to the home base properly. Suitable for parts or component harvesting. No error messages are displayed, and the suction function works. There may be other issues, but they are unknown, so the item is sold as-is. Please check images 8-9 for the Wi-Fi connection screen (the number of images may increase slightly for operational checks). The items for sale are the main unit, home base, and power cable. The battery is installed in the main unit, but it may be degraded. Due to simple cleaning, please consider the condition to be "very poor" (with scratches, dirt, and grime). We cannot provide support regarding usage, so please refer to the manufacturer's website, etc. ___ iRobot Roomba with charging dock