Does the 3rd generation need headphones with a transmitter that plugs into the ipod? I assume it doesn't, but i'm not sure. I'm looking at the Iluv i222, http://www.bhphotovideo.com/c/product/528256-REG/iLuv_I222_i222_Wireless_Behind_the_Neck_Stereo.html which come with a transmitter or the sony headphones in this link which don't. http://www.bhphotovideo.com/c/product/498098-REG/Sony_DRBT21G_B_DR_BT21G_B_Stereo_Bluetooth.html They sell the same headphones with a wireless transmitter for $20 more. Anyone use either of these? opinions? Thanks!