Bluetooth Earphone Hands Free Wireless Earphones

Support APP: NoLine Length: NoneActive Noise-Cancellation: NoCommunication: WirelessSupport Apt-x: NoSupport Memory Card: NoFunction: Sport,Microphone,Wireless Headphone,Portable,BluetoothIs wireless: YesVocalism Principle: Hybrid technologyTime to market: 2017Frequency Response Range: 8-22000HzSensitivity: 121±3dBVolume Control: YesPlug Type: USBWaterproof: NoResistance: 16ΩStyle: NeckbandConnectors: USBControl Button: YesWith Microphone: YesWireless Type: BluetoothBluetooth Standard: V 4.1 + EDRBattery: High-quality rechargeable polymer lithium batteryPower Display: IOS system power displayProfiles Supported: HFP /HSP /A2DP /AVRCPRF Range: 10mTalk/Playing Time: Up to 5 hoursCharging Time: 2 hoursStandby Time: About 175 hoursWith Microphone: Yes