Material:Silica GelWeight[g]:0.03 [mah]:300 Life Up To[hours]:24Voice Assistant Built-in:YesMaximum Wireless Range[m]:10m-20mNfc Technology:NoSound Isolating:YesCategory:Earphones & HeadphonesEarcups Type:Semi-openMax Output:1mwNumber Of Drivers:2Charging Method:Charging CaseHeadphone Pads Material: Magnet Type: Total Harmonic Distortion:1%Impedance Range:Up To 32 惟Bluetooth Version:5.3Package List:User Manual,charging Case,carrying Bag,usb Type-c AdapterFeatures:Waterproof,active Noice Cancelling,dual ConnectionCodecs:Apt-xWith Microphone:YesIs Wireless:YesSupport App:YesSupport Memory :NoWaterproof:YesResistance:9蠅Frequency Response Range:20 - 24000hzSensitivity:1dbPlug Type:NoneFunction: Headphone,for Video Game,common Headphone,for Mobile Phone,hifi Headphone,sport,kids' Headphones,for Outdoor,for Swimming,for ,for Dj,for StudyActive Noise-cancellation:YesVolume Control:YesControl Button:YesVocalism Principle:Balanced ArmatureWireless Type:BluetoothConnectors:Type CCommunication:WirelessStyle:Ear HookCertification:Ce,fccOrigin:Mainland