Blueberry offers a wearable device that measures real-time brain activity to enable self-regulation of a user’s focus and stress. The company’s hardware integrates with a software-based neurofeedback assistant to track a user’s focus, mental load and stress on a given task, providing a data-based means to improve performance. Blueberry offers real-time, visual, haptic and audio cues to sharpen performance and relax when it’s needed most.