Item Type: Bluetooth HeadsetStyle: In-EarConnectors: USBUse: Mobile PhoneFunction: Bluetooth，Waterproof，Noise Cancelling，MicrophoneCommunication: WirelessBluetooth Version: Bluetooth V4.0Compatible: For IPhone Samsung Nokia Blackberry Xiaomi etcSupports Bluetooth A2DP， AVRCP， and HS/HF profilesStandby time: 300 hoursUsage time: 8 hours of playback time or talktime and Charging time: 1-2 hoursWeight: 55.2gBluetooth operational range: about 10MBuilt-in lithium-ion polymer batteryBluetooth 4.0 technology9. Input power: 5VPackage Lists:Package Included:1 x Zealot Bluetooth Stereo Headphone1 x Micro USB Charging Cable4 x Earbuds1 x User Manual