(A) Concept diagram of the BISC implant and relay station. Relay station’s headstage provides wireless power and bi-directional communication from outside the body. The headstage module connects to the processor module (not shown) via HDMI cable. (B) Schematic of the overall system. The implant has four main modules: analog front-end (AFE) for recording and stimulation; wireless power for power transfer through an inductive link; wireless transceiver for bi-directional data telemetry; and controller for AFE configuration and data packetization. The headstage module receives a clock from the processor module; data moves between the headstage and processor modules with the processor module controlled by a computer through wired or wireless by means of Python/RESTful APIs. (C) Mechanical flexibility of the BISC implant. (D) Layout of the BISC implant. (E) Scanning electron microscopy (SEM) image of the TiN electrodes. (F) Comparison of our work with other competing wireless BCI devices. (G) 3D diagram of the headstage.