4 in 1 MP3 Wireless Headphone 1,wireless headset 2,wired headset 3,Built-in FM radio 4,Microphone for net chat 4 in 1 ... 8m, and reception beyond obstacle of wall. 1 FM RadioThe headset can be used as FM ... output such as full-channel TV sound, PC, Game Player, DVD Player, VCD Player, MP3. MP4, ... others, sounds wonderful!! 3 Wired HeadphoneEquipped with audio cable, the receiver can be used as a wired ...