DRIVE-FREE: The adapter has built-in driver software. Simply plug in the network card, and the driver installs automatically, allowing your computer to connect to WiFi. If your computer lacks internet access or cannot read a CD driver, this is a perfect choice. 2-IN-1 WIFI AND BLUETOOTH: Dual antennas ensure a strong signal. WiFi: Works with Windows 7/8/8.1/10/XP, plug and play. Vista/Mac OS requires driver installation via the included mini CD. Bluetooth: Only for Windows 7/8/8.1/10, not compatible with Vista/XP/Mac OS. (The blue LED light flashes when working.) 2.4 GHz/5.8 GHz DUAL BAND WIFI: Built-in RTL8821CU chip, latest IEEE802.11 a/b/g/n/ac universal wireless network technology. Offers speeds up to 5.8 GHz (433 Mbps) and 2.4 GHz (150 Mbps). 5.8 GHz is perfect for HD video streaming and lag-free online gaming, while 2.4 GHz Wi-Fi is for normal use like web browsing, music, and online chat. SUPPORT AP MODE: WiFi transmitter for networked computers. Set to AP hotspot mode, your computer's wired network can be converted into WiFi signals, allowing mobile phones, tablets, and laptops to wirelessly connect to WiFi internet. BLUETOOTH TRANSMITTER: Bluetooth 4.2 enables your non-Bluetooth computer to wirelessly connect to Bluetooth devices (like smartphones, iPads, tablets, speakers, headsets, keyboards, mice, printers, projectors, etc.) for data transfer, editing, or printing, with a connection distance of up to 33ft. (COMPATIBLE WITH WINDOWS 7/8/8.1/10 ONLY)