Follow New post Can any BT headset buttons be for ptt? Felipe Fernandes September 24, 2015 23:44 Would be nice to use Zello with bluetooth headset with no need to hold iphone in my hand with display switched on. 2 comments Date Votes Graydon Hammond III July 29, 2016 16:37 We use the LG tone wrap around headsets. They work great with our tablets and phones. You can customize the PTT button in the zello options. Graydon Hammond III July 29, 2016 16:39 In Options go to Push-to-talk button. Switch from toggle hold to talk to toggle in both areas. Then you only need to tap to talk and tap again to listen Please sign in to leave a comment.