hello i have mavic air.How can i improve the signal because there are only red features.Also the remote can be upgraded

I'm not an expert, still a newbie here, but I guess a lot depends on a location you fly in. If it is an urban area, probably your signal encounters strong interference. You can also try to experiment with 2.4 and 5.8 Ghz settings - again, depending on your location you can get different results. If you seek for any additional upgrades I think there are some controller/signal boosters but I am not really sure if these are supported by DJI.

Hi, thank you for bringing this query for us. Can you please clarify to us the problem you are having right now? Is there any disconnection message when you are flying? Also, you can check under Image Transmission Settings on DJI Go 4 application if you want to use a different frequency or different channel. Please keep us posted. Thank you!

Hi, thank you for bringing this query for us. Please keep us posted. Thank you!