Yes, that’s the point. With an adapter the user must perform the low-volt-detection manually.

I want the “Segway Navimow”. It’s without border-cables and the price is good for this new generation.

If you use it for sçhool, or a private course I can recomend QUIZLET. You can connect units from other users, or create your own. It’s a bit like a free Version of PHASE 6 (I only know the free Version of QUIZLET…)

But it’s totaly not like DUOLINGO.

• DUOLINGO is stand alone.
• QUIZLET is a helping tool for an existing course.

Babylon 5 is so great. At the very end, unfortunately, I find it a bit confused. I missed what became of the host in the sealed vessel, for Sheridan’s child. Instead, at some point in an episode before, the evolution of humanity is seen (with the red eyes, downloading data from earth), before the Sun/Earth explodes. That should have been at the end.