The DJI RC-N3 Controller controller is an ergonomic gripping handle that can mount any smartphone for piloting as long as the device is within 7.1 inches in length, 3.4 inches in width, and 0.4 inches in thickness; the drone then transmits piloting information through 2.4 and 5.8 GHz dual-band frequency. The feedback is displayed on the phones screen via an HD live video feed from the drone, and it is smart enough to adjust its video quality according to the phones display resolution. A dual-mast antenna ensures a robust long-distance wireless connection for piloting. Fluent USB-C rechargeable cables are included in this package for Lightning and USB-C-compatible phones: plug the cable into any one of the RC-N3s USB-C Type-A ports and insert the USB-C port into your phone to power both of them. The RC-N3 provides 3.5 hours of nonstop operations after being fully recharged. However, if you want to use its built-in internal battery to power the inserted phone, it can also operate for up to 1.5 hours with the DJI RC-N3 Controller.