Anyone know what 2 pin headphone adaptor I need for virgin upper? tried using the one that comes with my sony headphones but it doesn't fit?
You don't need a 2 pin adapter. One of the sockets is a standard headphones socket, the other slightly smaller one is only used as a power socket for the VS supplied Upper Class noise-canceling headphones.
Just plug your own headphones (or Bluetooth adapter) into the larger standard headphone socket. The other socket is not needed when using your own equipment.