Blueen USB Bluetooth 4.0 Low Energy Micro Adapter -For Windows 8/ Windows 7/ Vista Wirelessly communicates with an array of devices such as mice, keyboards, headsets, phones and other Bluetooth enabled devices Latest Bluetooth specification v4.0 Class 2 with low energy technology; Fully compatible with older Bluetooth equipment Compatible with 32 bit and 64 bit Windows 8.1/ Windows 8 / Windows 7 / Vista / XP Wireless range of up to 30 feet (10 meters) Comes with Installation CD-ROM and Quick Install Guide