OpenBCI stands for open-source brain-computer interface (BCI). We provide anyone with a computer, the tools necessary to sample the electrical activity of their body. Our versatile and affordable bio-sensing systems can be used to sample electrical brain activity (EEG), muscle activity (EMG), heart rate (EKG), and much more. Our 3D-printable EEG headsets can be used to get research-grade EEG recordings.