I got the Fly More bundle because I knew I'd want the Remote, 3-battery charger, and at least 1 extra battery.

This weekend I received and tested the following "range extenders" which I can say work brilliantly, plus the OTG adapter. Since using the OTG adapter and these parabolic range extenders, I haven't noticed a single video glitch or "interference" message pop up. Note that you must be more diligent in pointing your antennas at your drone, which is obvious but still easy to forget when you are flying it above and behind you if you're sitting in the grass under a nice shady tree :-) Also note that OTG cable works with iPhone/iPad but people report hit-and-miss with Android although they are supposedly working on a new firmware to better support OTG with Android. When you use the OTG you wire your phone via USB instead of WiFi, so you can turn your phone to Airplane mode to completely eliminate any extra interference from LTE, WiFi, Bluetooth. I also put my Apple Watch in airplane mode during flights.

https://www.amazon.com/gp/product/B072HFCC2S/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1

Mavic Pro Mavic Air Spark Signal Booster Threeking DJI Mavic Pro / Mavic Air / Spark Controller Signal Booster Range Extender Foldable Parabolic Anten

Sold by: THREE KING TECH

$8.69

https://www.amazon.com/gp/product/B00N9S9Z0G/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1

UGREEN Micro USB to USB, Micro USB 2.0 OTG Cable 2 Pack On The Go Adapter Micro USB Male to USB Female for Samsung S7 S6 Edge S4 S3, LG G4, Dji Spark

Sold by: UGREEN GROUP LIMITED

$6.99