The BUSY Bar is a productivity device with a customizable LED pixel screen that displays a user's status, such as 'busy' or 'available', and can be integrated with various apps and smart home systems. It features a built-in Pomodoro timer, distraction blocker, and notification blocker. The device is open-source, hacker-friendly, and can be controlled manually or remotely via Wi-Fi. It is priced at $189, which some consider expensive for its functionality.