Meet the Adonit AI-Vocal stylus: a voice recording stylus for iPhone and iPad that lets you take notes while capturing audio. It has 2 omnidirectional microphones with DSP noise reduction. It can pick up sounds from 2 meters way. The device can capture 9 hours of audio to its internal memory.
The companion app has 5 functions, including audio/video to text, translation, and e-signature. It lasts up to 12 hours on battery.