As you all know,our ordinary computer generally does not have Bluetooth function. But with this Bluetooth receiver, things gets a little big different. Just plug in this to enable the ordinary computer to have the Bluetooth headset function to realize the computer Bluetooth multi-function application. Features: CSR chip ensures dual mode transmission, stable signal, low power consumption. Bluetooth 4.0 - Enable Bluetooth headset to wirelessly connect to a desktop computer. Enable Bluetooth-enabled mobile phones to communicate with computer Bluetooth files and share Internet traffic. Allow wireless computer network files between computers to wirelessly share Internet access. Widely used - Can also be used in wireless Bluetooth keyboard, wireless printing, wireless transmission, etc., as well as medical care sensors and other fields. Widely compatible with mainstream systems - For Windows XP/Vista/7/8/10. Specification: Type: Bluetooth Receiver Interface: USB Plug and Play: YES External power supply: NO Transmission rate: 3Mbps Receive/send range: 10M Bluetooth standard: 4.0 Operating frequency: 2.4MHz Operating system: For Windows XP/Vista/7/8/10 Weight: Approx. 20g Package list: 1 * Bluetooth Receiver Note: 1. Please allow 1-3mm error due to manual measurement. 2. Different monitor colors may be different. Thanks for your kind understanding. 1、CSR chip ensures dual mode transmission, stable signal, low power consumption. 2、Bluetooth 4.0 - Enable Bluetooth headset to wirelessly connect to a desktop computer. 3、Enable Bluetooth-enabled mobile phones to communicate with computer Bluetooth files and share Internet traffic. 4、Allow wireless computer network files between computers to wirelessly share Internet access. 5、Widely used - Can also be used in wireless Bluetooth keyboard, wireless printing, wireless transmission, etc., as well as medical care sensors and other fields.