Material: Plastic,Silica gelBattery Capacity[mAh]: 45Battery life up to[hours]: 78Voice assistant built-in: NoMaximum wireless range[m]: <10mNFC Technology: NoSound Isolating: YESCategory: Earphones & HeadphonesMax Output: 5mWNumber Of Drivers: 2Charging Method: Charging caseHeadphone Pads Material: SiliconeMagnet Type: OtherDriver Diameter: 10mmTotal Harmonic Distortion: 3%Impedance Range: up to 32 ΩBluetooth Version: 5.1Package List: User Manual,Charging case,Charging Cable,Replaceable Pads SetFeatures: waterproof,With Microphone,Apple Siri Support,Active Noice Cancelling,Dual Connection,Playback Control,Google Assistant SupportCodecs: AAC,sbcWith Microphone: YesIs wireless: YesSupport APP: NoSupport Memory Card: NoWaterproof: YesResistance: 32ΩLine Length: 0mFrequency Response Range: 100 - 10000HzSensitivity: 101dBPlug Type: NONEFunction: for Video Game,Common Headphone,For Mobile Phone,HiFi Headphone,Sport,For Outdoor,For Office,For StudyActive Noise-Cancellation: YesVolume Control: YesControl Button: YesVocalism Principle: DynamicWireless Type: bluetoothConnectors: Type cCommunication: True WirelessStyle: In-earCertification: CE,EAC,FCCOrigin: Mainland ChinaBrand Name: 2pcs HTC TWS2 Fone De Ouvido in-ear Sem Fio True Wireless Earbuds ENC Noise Red