Computer Accessory Sets features: COMFAST CF-WU725B Ultra Mini 150Mbps High-Speed Portable Mobile Officing WiFi WLAN Transmitter Receiver Bluetooth Wireless Adapter Network Card with B Color: we send based on the color or size of the main image of the product page. Quantity：we send based on quantity on title, if there is no quantity in the title, we send based on description. 1. Professional COMFAST CF-WU725B bluetooth wireless adapter. 2. Bluetooth version, compatible with bluetooth 1.1 / 1.2 / 2.0 / 2.1 / 3.0, etc, has 3M transmission speed and a long transmission distance of 25.3 meters. 2. Ultra mini coin size, convenient to carry about for mobile officing. 3. Built in smart antenna. 4. 150Mbps high transmission speed, long transmission diatance, strong signal. 5. Stable performance, long service time. 6. Support WiFi access point function and mobile phones / tablets network sharing function. 7. Bluetooth support system: Windows 7 / 8 / 8.1. 8. Network card support system: Windows 7 / 8 / 8.1 / XP & Vista & MAC OS. 9. Compatible with HD player, IPTV set-top box and TV set. 10. Support WPA-PSK / WPA2-PSK / WPA / WPA2 / WEP wireless encryption, ensure network security.