Material:Metal,plastic,silica Gel,pvc [mah]:300 Life Up To[hours]:4-8 HoursVoice Assistant Built-in:NoMaximum Wireless Range[m]:10m-20mNfc Technology:NoSound Isolating:YesCategory:Earphones & HeadphonesEarcups Type:Semi-openNumber Of Drivers:2Charging Method:Charging CaseHeadphone Pads Material: Magnet Type: Driver Diameter:13mmTotal Harmonic Distortion:1%Impedance Range:Up To 32 惟Bluetooth Version:5.0Package List:User Manual,charging Case,charging Cable,replaceable Pads SetFeatures:Waterproof,with MicrophoneCodecs:SbcWith Microphone:YesIs Wireless:YesSupport App:NoSupport Memory :NoWaterproof:YesResistance:32蠅Line Length:0mFrequency Response Range:20 - 20000hzSensitivity:100dbPlug Type:Line TypeFunction:Common Headphone,for Mobile Phone,hifi Headphone,sport,for Hearing Aid,for Dj,for Internet Bar, Headphone,for Outdoor,for Study,for Swimming,for ,for Video Game,kids' Headphones,for SleepActive Noise-cancellation:NoVolume Control:YesControl Button:NoVocalism Principle:DynamicWireless Type:BluetoothConnectors:UsbCommunication:True WirelessStyle:Ear HookCertification:Ce,fcc,noneOrigin:Mainland Feature 1:Tws Headphone Bluetooth V5.0 EarphonesFeature 2:Sport Running EarphonesFeature 3:Bluetooth 5.0 HeadphonesFeature 4:Sport Earphones, Hifi Sound StereoFeature 5:Wireless Bluetooth EarphonesFeature 6:Wireless Bluetooth 5.0 HeadphonesFeature 7:Headphone With MicrophoneFeature 8:Earphone Bluetooth 5.0 +wireless Bluetooth Headset