1,mp3 player wireless headset 2,CE,ROHS, FCC 3, ... Portable mp3 player wireless headset1) bluetooth stereo headset 2) wireless net chat 3) wireless FM radio 4) wireless monitoring ChargingA ... built-in rechargeable Li-ion battery has been equipped in this headset, please charge ... Voice * MP3 player with card inserting. mp3 player wireless headset W-E68