Item model number: USB-BT400 Most advanced Bluetooth 4.0 adapter, backward compatible with Bluetooth 2.0/2.1/3.0 Enables wireless communication with Bluetooth-enabled computers, printers, phones, headsets, speakers, keyboards, controllers, and more Bluetooth Low Energy technology for energy-saving wireless connectivity Standard: Bluetooth V4.0 Interface: USB 2.0 Data Rates: Up to 3Mbps Distance of Use: Over 10 meters in free space Frequency Band: 2.4 ~ 2.4835GHz unlicensed ISM band Specification Ports & interfaces USB ports quantity 1 Internal No Interface Bluetooth Connectivity technology Wired Host interface USB Bandwidth Data transfer rate (max) 3 Mbit/s Networking Bluetooth profiles A2DP,FTP,GAP,HFP,HID,HSP,SPP Networking standards IEEE 802.2 Modulation 8PSK,GFSK Bluetooth version 4.0 Frequency band 2.4 - 2.4835 Wireless LAN features Maximum indoor range 10 m Power USB powered Yes Design LED indicators Yes Colour of product Black Performance Plug and Play Yes Windows operating systems supported Windows 10 Education,Windows 10 Education x64,Windows 10 Enterprise,Windows 10 Enterprise x64,Windows 10 Home,Windows 10 Home x64,Windows 10 IOT Core,Windows 10 Pro,Windows 10 Pro x64,Windows 7 Enterprise,Windows 7 Enterprise x64,Windows 7 Home Basic,Windows 7 Home Basic x64,Windows 7 Home Premium,Windows 7 Home Premium x64,Windows 7 Professional,Windows 7 Professional x64,Windows 7 Starter,Windows 7 Starter x64,Windows 7 Ultimate,Windows 7 Ultimate x64,Windows 8 Enterprise x64,Windows 8 Pro,Windows 8 Pro x64,Windows 8 x64,Windows 8.1,Windows 8.1 Enterprise,Windows 8.1 Enterprise x64,Windows 8.1 Pro,Windows 8.1 Pro x64,Windows 8.1 x64,Windows XP Home,Windows XP Home x64,Windows XP Professional,Windows XP Professional x64 Weight & dimensions Width 19.5 mm Height 16 mm Depth 8.1 mm Weight 2.2 g Other features Power LED Yes