Product description:This wireless Bluetooth hands free headset provides you a feeling of quiet and comfortable listening experience. Specially designed with in-ear style、 giving you ultimate comfort and fit. Characterized by stylish design and advanced technology、 you will be cool and trendy once wearing it.CVC 6.0 noise reduction、clear talk、 Enjoy your hands free callsSpecification:Line Length: 0.4mResistance: 32ΩCharging time・2-3hCommunication: WirelessPlug Type: USBSensitivity: 120＼5dBConnectors: USBModel Number: BT1Function: Bluetooth、Waterproof、Noise Cancelling、Microphone、For Internet Bar、for Video Game、Common Headphone、For Routine Office Work、Wireless Headphone、For Mobile Phone、Portable、For iPod、Sport、Voice control、Supports music