Zello & remote PTT unreliable

Latest Zello update rendered the remote Dellking Bluetooth PTT useless. Note that it used to work at some point with Zello but not even the latest update has been able to fix.

By the way Zello needs to permit user to direct audio to pre defined Bluetooth remote ptt speaker. If waze can why not Zello ?

iPhoneCR about Zello Walkie Talkie