Stable Bluetooth 5.3 Technology: This USB Bluetooth adapter dongle adopts the latest Bluetooth 5.3 chip for faster pairing, more stable signal, lower latency and reduced power consumption. Enjoy smooth wireless audio and data transmission with fewer dropouts and stronger anti-interference performance. Wide Device Compatibility: Turn your PC or laptop into a Bluetooth-enabled device. Compatible with Windows desktops and notebooks to connect wireless speakers, Bluetooth headsets, keyboards, mice, game controllers and more. Ideal for home, office, gaming and multimedia setups. Wireless Audio Receiver & Transmitter: Use it as a Bluetooth audio receiver to stream music from your computer to Bluetooth speakers or headphones. As a USB transmitter, it enables wireless audio from non-Bluetooth PCs to your audio devices, providing a convenient solution for listening to music, watching movies and making internet calls. Plug and Play USB Design: Compact USB interface design for easy plug and play on most Windows systems. Simply insert the dongle into a USB port to quickly build a Bluetooth connection. No bulky external power or complicated installation is required, making it suitable for both beginners and advanced users. Compact & Portable: Mini-sized body allows the adapter to stay in your laptop without obstructing neighboring USB ports. Lightweight and easy to carry in your bag or pocket, perfect for travel, business trips and daily use with your PC or laptop. *Notes: 1.Please confirm your computer system before use. Win7 systems need to download drivers. If your computer system is Win8.1, Win10, Win11, you do not need to install the driver. 2.Only supports WINDOWS system computer, not support for mac or other systems. 3.Not support to use in the car. 4.If the computer has Bluetooth, you need to disable the computer's Blueto