Product Review

Bluetooth specification: V4.0 Compliant
Symbol rate: Up to 3Mbps
Interface: USB Compliance
Receiving/Sending range: 10M/33FT
Operation system: Windows XP Vista Windows 7 8 8.1 10
Supporting profiles: Networking Dial-up Fax LAN access and Headset

Compatible
-Networks a Windows computer to Bluetooth devices such as Keyboard, Mouse, Printer, Headset, Speaker, etc
-Compatible with Windows 10/8.1/8/7, XP, and Vista systems
-Not compatible with Mac OS,Car stereo systems or TVs

You may have these problems:

Why is the audio quality so terrible?
Please uncheck "Handsfree telephony" from the services setting on your bluetooth device -> Control Panel/Hardware and Sound/Devices and Printers -> select your device and right-click, open Properties, then go to Services tab and uncheck Handsfree Telephony

Can it work with my game controller?
Works well for Xbox One S Controller (Windows 10 with Anniversary Update or greater only), but for DS4 which use a non-standard Bluetooth implementation that requires third-party software, you can install them yourself and have a try


Something you might wanna know:

USB 3.0 introduced radio frequency interference in the 2.4GHz to 2.5GHz range, which is the same radio spectrum used by Bluetooth and Wi-Fi, please don't use USB 3.0 port, and the bluetooth adapter should not be too close to your router or working USB 3.0 devices

Try not to plug the bluetooth adapter in the back of the computer, because there are more radio interference and the metal of your tower-style computer case will block the bluetooth signal

*Some devices like BOSE may need special driver for Windows 7