SPECIFICATIONSBrand Name: NoEnName_NullHign-concerned Chemical: noneOrigin: Mainland ChinaCN: ZhejiangMaterial: synthetic fiberProduct information:Bluetooth version: 5.0Bluetooth protocol: AGHSPBluetooth solution: LanxunBluetooth transmission distance: 10 metersHeadphone channel: stereo (2.0)Music playback time: maximum sound 7H, medium...