Feature:1. 1. Install Bluetooth on the PC, no need to purchase an additional Bluetooth adapter. CF-727B supports Bluetooth 4.2 to plug into a laptop or desktop computer, and it provides Bluetooth functionality for various devices. For example: connect a Bluetooth speaker, you can enjoy the freedom of portable music; connect a wireless headset, wireless music/phone (requires a microphone on the headset), easy processing; PC connects to a Bluetooth printer, printing is smooth and more efficient. The PC is connected to the gamepad and is no longer restricted. Play games easily. The PC is connected to the mouse/keyboard, with immediate response and no delay. The PC is connected to a mobile phone/tablet, and files/photos can be easily transferred even if there is no network.2. 2. The desktop can transmit Wi-Fi without a router. CF-727B instantly becomes a Wi-Fi transmission terminal, supporting terminals such as mobile phones/tablets to connect to Wi-Fi.3. 3. The desktop computer can receive Wi-Fi without a network cable. The network cable may damage the cleanliness of the room. Using CF-727B, it can help the desktop immediately receive Wi-Fi from the router.Specification:Use: plug and playChipset: RTL8822BUAntenna: Built-in 2dBi antennaInterface: USB2.0Support frequency: 2.4GHz and 5.8GHzBluetooth: Bluetooth 4.2 fast transmissionStandards: IEEE 802.11ac, 802.11b, 802.11g, 802.11nColor: blueEncryption method: wep encryption, WPA-PSK, WPA2-PSKWifi support operating system: compatible for win 7/win8/win8.1/win 10 (32bits,64bits) Mac os 10.6-mac os 10.15 (wifi)Bluetooth driver does not support compatible for windows xp/vista/macPackage List:1*CF-727B wireless adapter1*CD1*Instruction