Open_slate tablet with physical disconnection of mic and camera https://sudonull.com/open-slate-tablet-with-physical-disconnection-of-mic-and-camera
Learn about open_slate on MediaTek Genio 720: hardware kill-switches for privacy, modularity, Android/Linux. Specs, prices, scenarios for developers. Suitable for secure dev.
Stereo Headset for Binaural Recording: Design https://sudonull.com/stereo-headset-for-binaural-recording-design
Compact headset with PUI Audio microphones and Knowles speakers for precise binaural recording. Prototyping, components, comparison with Sennheiser and Roland. Explore details for audio development.