TWO XILLIE SHORT USB 2.0 TO USB CABLE

By default, your phone and the Spark controller connect to each other via Wi-fi. But you can create a more reliable connection with a Lightning/ MICROUSB/USB-C to male USB cable. You’ll also need a microusb to USB OTG adaptor, and don’t forget to tell your phone to ‘forget’ the controller’s Wi-fi network.