Wireless phones with 2 headsets?

[Barnes]

Evening,

Buying a Panny plasma for gaming & watching music dvd's for the kids. It's in the main lounge with our other plasma.
Can you recommend a set of wireless phones (gives the kids chance to move around whilst playing games) with 2 enclosed headsets rather than the open back types please. The youngest is 10 years so I guess nothing too heavy if possible. Budget ideally £100 but will go slightly higher if required.
The Panny doesn't have a headphone output only 2 phonos (red & white) which I've been told on the Plasma Forums that a 3.5mm female to phono 2x cable will suffice for headphone connection.
Does the headphone transmitter connect into the single 3.5mm or can I use the 2 phono connections?
Many Thanks.