Bluetooth Wireless Headset with Noise Cancelling Microphone

Model Number: Bluetooth Wireless Handfree HeadsetFunction: Sport,Wireless Headphone,Portable,BluetoothVocalism Principle: DynamicResistance: 60ΩWith Microphone: NoSensitivity: 110±3dBControl Button: NoStyle: In-EarSupport APP: YesPlug Type: WirelessFrequency Response Range: 20-20000HzActive Noise-Cancellation: YesLine Length: 0.3mWaterproof: NoBrand Name: overmalWireless Type: BluetoothColor: Black,Blue,Green,Hot Pink,Yellow ,WhiteFeature1: Bluetooth 4.1 technology.Feature2: Crystal HD clear sound quality.Feature3: Sport wireless bluetooth in ear headsetFeature4: Hands Free built in microphone