Wireless Reception from any electrical device with audio Output such as full channel TV sound.  PC, Game player, DVD player, VCD player, Audio device, MP3 player and CD player. It is a perfect audio chat tool infinite enjoyment. Place the Emitter near baby, old people and sick people who need care. The sound of cared  people can be heard with the  receiver for  easy care. The headset can be  used as FM Radio separately search and lock channel automatically.