Hey Wayne, thanks again, your unidens must be the smaller 16m range version, they had that at Freddie's as well, I chose the larger one with aa's for longer run time and I am going to use them for other purposes besides the kite festivals. I live in an area of thick forest much of the time and I can use them at the ski slope to talk to the boy as well so more power should help I have enough aa's and only a few aaa rechargeables so that factored in as well. I'm getting a handle on the 2 ring 3 ring thing or trs and trrs as their called. Too techy no? Problem is the manufacturer doesn't tell you which one to use anywhere. On my way to pick up the 3 ring 2.5 headset in a few. The Midland's John suggested looks to be a old school 1 ring or ts connector which is a mono connector no mic capability. That's ok, btw t stand for tip r is ring and s is shank. The extra ring in trrs is for the mic. My head is starting to spin now, I'm heading out to pick up the 3 ring headset at the locker, confused much? Sorry for the novel here, I just retired a week ago because I ramble too much. Lol. Looking forward to seeing all at the fest, should be a real hoot getting 100+ quads on the air at once.😄