Material : PlasticBattery life up to[hours] : 5-6hVoice assistant built-in : YESMaximum wireless range[m] : 10m-20mNFC Technology : NoCategory : Earphones and HeadphonesNumber Of Drivers : 2Charging Method : Charging caseHeadphone Pads Material : FabricMagnet Type : NeodymiumBluetooth Version : 5.3Package List : User Manual,Charging caseCodecs : Apt-XWith Microphone : YesIs wireless : YesSupport APP : YesWaterproof : NoFrequency Response Range : -HzFunction : For Internet Bar,Monitor Headphone,Common Headphone,HiFi Headphone,SportActive Noise-Cancellation : YesVolume Control : YesControl Button : YesVocalism Principle : DynamicWireless Type : bluetoothCommunication : WirelessStyle : In-earCertification : CEOrigin : Mainland China,musselsmini cuffie : kz zs pro xwireless headset headset : earbudds wirelessin ear headphones bluetooth : small bluetooth earbudssleep earbuds : fone de ouvido sem fio bluetoothfone de ouvido sem fio bluetooth : mini fone de ouvido bluetooth invisivelmini auriculares bluetooth inalambrico : fone de ouvido bluetooth Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.