Magic Buds Wireless Earbuds (Black075) Interface: USB 3.0, eSATA USB 3.0 to eSATA conversion cable, adopt USB 3.0 high speed transmission, compatible with USB 2.0 Supported transmission speed: 5 gbps ( maximum ) Dimension: about 48 x 28 x 14 mm Compatible with Win 2000/XP/VISTA/WIN7/MAC OS 9.2 and later