... connection; Adjustable headband design; Features:2.4Ghz wireless connection;Freechecking code intelligent connection;Adjustable headband design;High quality stereo sound;Hidden omnidirectional microphone design; ... required:WindowsXP,WindowsVista,Windows7,Mac etc.Package including:Headset 1pcs,USB transmitter 1pcs,USB charging cable 1pcs,manual 1pcs 2.4GHz wireless high-quality stereo headset(black)