ETSOUND HV-900 Sport Handfree Earphone Headphone Wireless Bluetooth Universal Stereo Neckband Headset For LG Samsung Iphone HTC Built with CSR Bluetooth 4.0 chipset guarantees solid performances and connection stability within 10 meters operational range Uinque ring-necked design, opening up a new era of bluetooth Ultralight elestic memory material, easy to carry Vibrate to remind you not to miss any incoming calls Simultaneously connect multiple devices to easily switch calls entertainment High-fidelity stereo audio earphones enjoy entertainment Intelligent noise reduction, clearer calls Long standby, long call Compatible with standard bluetooth-enabled mobile phone, media devices Answer/end/reject a call Last number redial, voice dialing, transfer a call, call waiting