The iRobot Roomba Plus 505 Combo Robot Vacuum Mop Main Board Replacement is a black, bagless robotic vacuum cleaner that can be controlled using Amazon Alexa for added convenience. With a runtime of up to 120 minutes and a charge time of 4 hours, this portable vacuum is designed to effectively clean your home with its cordless operation and Bluetooth smart home protocol. The included motherboard is a crucial component for maintaining and repairing your iRobot Roomba 505 model, ensuring optimal performance and efficiency in keeping your floors spotless.