Specification:Model?AthleteColor?blue、 green、 BlackWearing type?In-ear with ear hookFunction?Noise Cancelling、 NFC connection、 Bluetooth、 Answering phone、 Multi connection function、 Voice control、 Song switching、 MicrophoneConnectivity?WirelessConnecting interface?Micro USBApplication?Mobile Phone、 Computer、 SportPower supply?Built-in rechargeable li-polymer batteryWorking time?Talk time: 8 hours; Music time: 8 hoursStandby time?Up to 180 hoursCharging time?About 2 hoursBluetooth YesBluetooth version V4.0Bluetooth distance W/O obstacles 10mBluetooth protocol A2DP、 AVRCPBluetooth mode Headset、 Hands freePackage contents?1 x Earphone、 2 x Earbud、 1 x USB Cable