using an intelligent lift off mechanism the displayed unit called Little Fwend works by the release antenna running quite paralell to the armtube enabling the automatic lift off at the point of contact for release.
From the description I learned: “Lower the stylus at the lead-in groove and liston to music, fall asleep or walk the cat. Little Fwend will safely lift the tonearm when you are not”
as the release antenna is very sensitive you might be well advised looking at it as a cantilever in a cartridge. The result is absolutely fine – it works pretty well!