Small bluetooth headphone with 3.5mm jack 1.System:VHF/RF 2.Modulation:FM 3.Mode:Mono 4.Operation distance> 30meters Small bluetooth headphone with 3 ... electrical device with audio output such us TV,PC,DVD,VCD,MP3/MP4 and CD player2,FM radio:The headset can be ... Headphone:DC 3V(2*1.5V AAA batteries) 12.Transmitter:DC 3V(2*1.5V AAA batteries) Small bluetooth headphone with 3.5mm jack ...