What does the voice-activated stylus mean?

This is a way to help sleep.

Producers write with a stylus, similar to ASMR.

ASMR (English: autonomous sensor meridian response, abbreviated as ASMR) refers to the spontaneous perceptual meridian response, which means that the human body produces a pleasant and unique sense of stimulation on the skull, scalp, back or other parts of the body through sensory stimulation such as vision, hearing, touch and smell, also known as ear sound and intracranial orgasm. The specific definition of ASMR was put forward in 20 10, which shows that ASMR has the following characteristics: spontaneity; Related to feelings; Reaching the peak or climax has nothing to do with sex; Triggered by external or internal events.