Original Comment: I had a little fear after some messages on the net magnetic talking on the phone wearing ripped Z2 / 3 / 3C because of the magnet is too strong (but it's more a design problem Sony phones).
But once the receiving adapter, I really wrong to think that this is still possible. The product was little to be seen, at least for me the magnet is far from being strong enough to pull anything. So the fact that it is not very powerful is rather a good point for me.
Works great on a phone Z3C and Z2 tablet. Excellent!