Model: EPB04Color: Black,Champagne,GoldWearing type : In-EarFunction: Answering Phone,BluetoothHeadset type: DynamicConnectivity : WirelessApplication: Mobile phoneFrequency response: 20~20KHzTalk time: About 3 hMusic Time: About 2.5 hStandby time: About 55hCharging Time (h): About 1.5hBluetooth: YesBluetooth version: V4.1Bluetooth distance: W/O obstacles 10mBluetooth protocol: A2DP v1.2Bluetooth mode: Hands freeBattery Capacity(mAh): 55 mAh Package weight: 0.085 kgPackage size (L x W x H): 16.50 x 8.00 x 3.00 cm / 6.50 x 3.15 x 1.18 inches A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A