Importer520(TM) wireless bluetooth BT headset headphone earphone earpiece with dual pairing For Nokia Lumia 521 520 (AT & T, Metro PCS, T-Mobile) - Blue Brand New Product Bluetooth V3.0 CSR 3.0 Chipset Multipoint techonology, pairing with TWO Bluetooth devices simultaneously Sleek, ultra-lightweight design ensures that the devise remains secure and comfortable, even when worn for long durations Fashionable dimond style design. With three interchangeable soft gel earcaps for a customized fit