I have the sig 8’s with an Iphone 5c. I find that I have to go back and re-initialize Blue Tooth on the phone to get the 2nd HA to connect. And if the battery is even close to low, that HA will cut out.
I have 2 applications, one is “Smart Direct” which gives me control over modes and a microphone direction control feature, battery status check, etc…
I have something else installed which I launch with 3 taps on my phone button, but I can’t see the name of the app. I think that may be Smart Remote. That comes up and recognizes the HA’s as Rexton KS 8.0 with a battery indicator, allows me to change Mic volume/HA, Gives me preset control. AND Live Listen so one can place the phone someplace and have the sound captured at the phone and sent to the HA. To be honest I don’t use that in my circumstances, but I do use the fact that I can listen to the news from my phone direct to my HA. I can also hear the cell phone direct to my HA’s which is a real treat. Hope this helps, Allen