OA-SKY Publisher: TIANKE(HONGKONG)INDUSTRY CO.,LIMITED Genre: Entertainment Released: 9 Dec, 2017 Size: 6.2 MB Price: FREE! Click here to request a review of this app App Store Info Description The software uses the device Bluetooth link roller ball aircraft,so that the aircraft on the ground rolling and flight operations. What's New in Version 1.0.1 1.change ui. Screenshots Screenshot 1 of 8