The BrainCo Mobius is a wearable brain-machine interface headband equipped with proprietary hydrogel electrodes and an EEG signal-detecting circuit board that captures brain signals at precision greater than 1 microvolt. Through the Fusi SDK, it streams raw EEG data, brainwave frequency band energy (Delta, Theta, Alpha, LowBeta, HighBeta, Gamma), attention and meditation scores, eye blink events, and head posture. The SDK supports Android, iOS, Python, C#, NodeJS, and Unity. Correlation with medical-standard EEG equipment is reported at 97.5 percent. It is used for neurofeedback training, attention monitoring, and brain-computer interface research and education.