Tex Shinobi BLE DIY Upgrade Kit for Tex Shinobi and Tex Shinobi DIY keyboards allow you to use them wirelessly and enjoy freedom from the wires. It operates on the BLE 4.0 specification with low power consumption, allowing significantly extended battery life. To connect, it's necessary to unscrew the screws on the plastic cap at the back of the keyboard, insert the module, and screw the screws back in.

In the photos, the module is shown as part of the keyboard, but the keyboard itself is not included :3