Description:Bluetooth Version : V4.02 devices Can Connected same TimeHigh quality materials lightweight body allows you to wear more comfortableIt has built-in high-quality batteryCompatible with any Bluetooth enabled devices.Specification:Color: BlackFeature: Wireless HeadphoneFunction: Answering phone Bluetooth MicrophoneConnectivity: WirelessConnecting interface: Micro USBApplication: Mobile Phone SportPower supply: Built-in rechargeable batteryBluetooth: YesBluetooth version: V4.0Bluetooth mode: Hands free HeadsetPackage Included:1X Device1X Micro USB Cable1X Manuel