Features:Work with most bluetooth-enabled devices like iPhone 5S/5C/5/4S/4; Samsung Galaxy Note3/Note2/S4/3; Samsung Note II 2; LG; HTC and so on.Serves as both a wireless music Headset and Bluetooth phone headset for hands free calling with built-in Mic.Control your music player directly from the headset with functions such as play， pause， next & previous track， and volume.Support 3.5mm stereo audio input.You can answer/reject/end incoming call.Bluetooth working distance is up to 10m/30ft away.Adjustable design for fit with a lot of comfort.Built in rechargeable Li-battery.Specification:Connection: Bluetooth Wireless connectingBluetooth specification: Bluetooth 3.0+ EDRSupport profiles: HFP， A2DP， AVRCPOperation Range: Up to 10mSNR: ≥90DBMusic formats: MP3/WMA/WAVBattery: Built-in lithium batteryTalk time: 15 hoursInterface: 1 * Micro USB; 1 * AUX portPlaying time: 20 hoursStandby time: 200 hoursCharge voltage: DC 5V/ 500mACharge time: 2.5 hoursSpeaker diameter: 30mmColor: Black/WhiteItem weight: 97g/ 3.42oz (without accessories)Package size: 18.5 * 16 * 5cm/ 7.3 * 6.3 * 2.0inPackage weight: 190g/ 6.7ozPackage includes:1 * Bluetooth headphone1 * Charging cable1 * Male-to-male 3.5mm audio cable1 * User manual