Welcome to our store!</br> 1、Allows the computer to have Bluetooth function, realize wireless transmission and sharing. 2、Support for WINDOWS ALL/OS X/LINUX system, support for iphone earbuds of 3rd generation. 3、Achieve higher sensitivity, faster transmission speed, and more stable device connection. 4、Small, lightweight and portable, convenient for carry and storage, high performance. 5、After the device is successfully matched for the first time, it will automatically connect after the subsequent startup. <p class="wang-edit-text">Item Type:&nbsp;USB&nbsp;Bluetooth&nbsp;Adapter Material: ABS Color: As Picture Shown Weight: Approx. 12.0g/0.4oz Bluetooth&nbsp;Version:&nbsp;Bluetooth&nbsp;5.0 Bluetooth&nbsp;Chip: for BR8041 Transmission Distance: About 10m Scope of Application: Support&nbsp;for&nbsp;WINDOWS&nbsp;ALL/OS&nbsp;X/LINUX&nbsp;system, support&nbsp;for&nbsp;iphone&nbsp; earbuds&nbsp;of&nbsp;3rd&nbsp;generation. Function: Computer&nbsp;Bluetooth&nbsp;Expansion How to use: 1. Confirm whether the transmitter you purchased is the call version 2. Insert the transmitter into the USB port of the computer, the red and blue lights flash alternately 3. Turn on the pairing status of the&nbsp;Bluetooth&nbsp;headset/speaker 4. Wait for the transmitter to automatically pair with the&nbsp;Bluetooth&nbsp;headset and speakers (the computer does not require any operation) 5. After the pairing is completed, the red light of the transmitter is always on 6. Some computers need to set the sound output channel, or plug it in again <style> .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }</style> 1 x USB&nbsp;Bluetooth&nbsp;Adapter1 x Manual (Customer Satisfaction) - is our priority. If you notice any problems with the products after receiving the goods, such as damaged goods or incorrect quantity, please contact us immediately. We will do our best to provide you with satisfactory after-sale service.</br>