Amazon.com: DJI Tello Quadcopter Drone Boost Combo with HD Camera and VR, comes 3 Batteries, 8 Propellers, Powered by DJI Technology and Intel 14-Core Processor, Coding Education, Throw and Go : Toys
An application that allows you to control Tello by tilting your smartphone ( iOS)
Amazon.com: GameSir T1d Bluetooth Controller for DJI Tello Drone iOS 9.0+ Android 4.4+ Remote Controller Joystick with a Micro-USB for Charging, 600 mAh Built-in Battery : Video Games