(1) The holder locks the phone automatically by gravity linkage. So it only supports vertical mode
But does not support horziontal mode
(2) The holder supports the phone with case on while using. But please kindly be sure that the thickness of case should be less than 3mm
(3) The holder is 360 degree rotatable. But it only can support vertical mode
(4) Please kindly be sure the holder is pasted tightly to ensure the holder will not fall off while driving.