multifunctional wireless headphone 1,wireless listening function 2.FM RADIO 2 IN 1 OR 5 ... 1 3. for TV,PC,DVD,VCD,MP3/MP4 wireless headphone Function:1.Wireless headphone1,wireless listening function: It can receive the sound wirelessly ... :20-20000Hz 9.Transmission Frequency:86MHz ±0.5MHz 10.Receiving Frequency:84-108MHz(±0.5MHz) 11.Power Supply Headphone:3V(2*1.5V ...