I have these exact radios, except mine are blue.
What Ozone said, Motorola 1 pin Jack.
I bought a Element Calvary headset for mine and it works, the only thing is that the push to talk button on the headset must be pressed down at all time (I just taped it down). Once you do that you can transmit through the mic by pushing the push to talk button the radio.
The reason behind this is Cobra use a slightly different pin jack then Motorola's (Coachster explained it to me once upon a time).
If you don't mind that little mod then your golden, if not just buy a motorola radio, your a lot better off.
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