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