Product DescriptionThis V4.0 Version USB Bluetooth Wireless Adapter adopts original CSR(Cambridge Silicon Radio) chip and goes with original CSR Harmony driver software, completely rearching bluetooth 4.0 technology standard. It supports ultra long trasmittion distance (up to 65.6 ft), strong, stable, dual mode, and super low energy consumption. Product Specifications:Compatable Interface Port: USB 2.0Compatible systems: Windows 98, 98se, …