We’re pleased to introduce OpenEarable hardware version 2.0.1, a meaningful refinement of our ear-based sensing platform. While the PCBs and sensors remain unchanged from version 2.0.0, this update focuses on the enclosure itself. The new housing is stronger, transparent, and designed to better embody the principles that define OpenEarable: transparency, openness, and hands-on exploration.

The most striking change is the redesigned backside, now produced using Crystal Shield, a rigid and transparent material. This gives users an unobstructed view of the internal electronics, making the device not just a tool but a teaching and learning object in its own right. For educators, students, makers, and researchers, the new design makes it easier to understand how the system works, to showcase embedded technologies.

Mechanical durability has also been improved. The enclosure geometry has been reinforced to better withstand daily use, whether in the lab or for field studies. OpenEarable is better secured against falls and more suitable for long-term field studies where reliability is essential.

The shift to Crystal Shield brings wireless benefits as well. Because the material attenuates signals less than the previous housing, users may see improvements in BLE transmission, including more stable connections, better streaming performance, and increased range. This is particularly helpful for applications involving high-rate data or setups where the receiver is not directly next to the device.

OpenEarable 2.0.1 remains fully compatible with all existing v2.x firmware, and no software or PCB changes are required. As always, the enclosure files are available openly and can be modified, remixed, or adapted to your own needs. The design files are already available in our repository. We look forward to seeing how the community builds on this version, and we welcome feedback, ideas, and contributions.

OpenEarable continues to grow with and because of its community.