Style:In-Ear Resistance:9 Package:Yes Use:PortableMediaPlayer Communication:Wired PlugType:Wireless Sensitivity:1223dB Iswireless:Yes Function:BluetoothNoiseCancellingforVideoGameCommonHeadphoneForRoutineOfficeWorkWirelessHeadphoneForMobilePhonePortableForiPodHiFiHeadphoneSportSupportsmusic FrequencyResponseRange:5-40000Hz ModelNumber:JK23131