Most of hoverboard users might understand deeply the main problem of his/her hoverboard was out of direction control on account of contactor defects, poor Li-ion battery, or bad controller and mainboards ...
New generation hoverboard - Brand Simate Model P9 has been developed by advanced Non-Contactor highly intelligent automatical gyro technology, with much simple internal structure, more integrated chips and mainboards, wholly stronger Al-Alloy frame support longer service life, much stable and easier to ride and maintenance.
Pay a little more money to get much longer service life and fun - that is why I introduce Simate Model P9 - New Generation Electric Hoverboard to All My Friends ...