Ams active noise canceling (ANC) earbuds| Reduce noise up to 40dB

Brand Name: SmartyTechStyle: HeadphoneVocalism Principle: DynamicOrigin: CN(Origin)Control Button: YesActive Noise-Cancellation: YesCommunication: WirelessVolume Control: YesSensitivity: 122±3dBWireless Type: BluetoothIs wireless: YesLine Length: 0NonemSupport APP: YesFunction: For Internet BarFunction: Monitor HeadphoneFunction: for Video GameFunction: Common HeadphoneFunction: For Mobile...