Oppo HA-2 USB DAC\Amp.
In as-new condition. all original packaging, bought from Listening Post in Wellington about a month back.
Works with any iDevice with a lightning port, and any (?) Android device running Android 5.0, or which supports USB-OTG. Also works with OS X & Windows sytems.
http://www.digitalaudioreview.net/2015/02/oppo-ha-2-portable-dac-and-headphone-amplifier-review/
$400 Incl courier.