阻抗32（ ）類型頭戴式靈敏度45（dB/mW）品牌JOYSHIYA頻響范圍20-2000（Hz）*無線耳機功能*FM收音機功能*立體聲有線耳機功能（JH-811A1）*有線網上聊天耳機功能（JH-811A1）VHFmultifunctionwirelessheadphone*Wirelessheadphone*FMradio*wireduseforheadphonewithmicrophonefortalkingoninternet(onlyforJH-811A1)*High-qualitystereoperformance(onlyforJH-811A1)*FullycompatiblewithTV,CD,VCD,DVD,MP4,PCandotheraudiodevices.*Transmissionfrequency:85.2 0.2MHz*suitableformarketsofAsia,Middleeast,SouthAmerica*suitabletobeaspromotionalitemsforHi-techproducts(includingTV,DVD,MobilePhone,etc).