Material:Abs,plastic,silica GelCategory:Earphones & HeadphonesEarcups Type:Semi-openNumber Of Drivers:2Charging Method:CableHeadphone Pads Material:Soft FoamMagnet Type: Driver Diameter:2mmTotal Harmonic Distortion:0%Impedance Range:Up To 32 惟Bluetooth Version:4.1Package List:User Manual,charging CableFeatures:Waterproof,with Microphone,active Noice CancellingCodecs:Aac,sbcWith Microphone:YesIs Wireless:YesSupport App:NoSupport Memory :YesWaterproof:NoResistance:32蠅蠅Line Length:NonemFrequency Response Range:20 - 22000hzSensitivity:105dbdbPlug Type:NoneFunction:For Mobile Phone,for Internet Bar,for Video Game,sport,common HeadphoneActive Noise-cancellation:YesVolume Control:YesControl Button:YesVocalism Principle:DynamicWireless Type:BluetoothConnectors:NoneCommunication:WirelessStyle:NeckbandCertification:CeOrigin:Mainland Features A:Mini 503 Bluetooth Headphone Ear HookFeatures B:Bluetooth Wireless Headphones Mini 503Features C:Sport Headsets MusicFeatures D:Music Stereo Headphones Bluetooth WirelessFunction A:Neckband Bluetooth HeadsetFunction B:Music Player HeadphonesFunction C:Bluetooth Earphones Tf FmFunction D:Wireless Headset With MicrophoneApplications:Mini503 Wireless Bluetooth Headphones Stereo EarphonesCompatible Model:Headphones For