What voice radios have produced good results for pilot to camera operator communications? There is too much lag or delay to use cell phones. I am also looking for earpieces that don't have a mic boom. VOX is a must. Back in the 80s I had a set of radios from radio shack that had VOX and an earbud that had the mike built in that picked up your voice through the ear canal. They worked great. We used them for motorcycle touring and they were able to distinguish between our voices and the roar of the bikes. Of course I can't remember what type they were or find anything like it now. Everything I find has a boom mike. Thanks