Bluetooth 5.4 Support: Apply the latest Bluetooth 5.4 adapter,support dual-mode transmission, backward compatible with Bluetooth 2.1/3.0/4.0/5.0/5.3. To achieve anti-interference, low energy consumption, high speed and more stable transmission, rejecting delays | Faster Transmission Speed, Wider Coverage: Upgrade to faster 3 Mbps transfer rates, achieve stable and fast connections anytime! Experience the freedom of wireless connectivity with our USB bluetooth adapter. Easily achieve 20 meters of barrier-free transmission, so you can walk around the office freely and listen to music in your headphones without interruption. Bluetooth dongle for pc provide reliable and long-range connectivity for your wireless device needs | Memory Pairing, Easy to Connect: This bluetooth USB adapter pc has a memory function, after the initial pairing, it will automatically connect when turned on, without the need to re-set up, which is simple and convenient | Up to 7 Devices Connected Simultaneously : Bluetooth pc adapter supports up to 7 devices connected at the same time without interfering with each other.Saves your USB space, no need to worry about wires getting tangled or being tied to your device | Mini Size: The compactly designed pc bluetooth adapter allows you to plug into your laptop or PC without interfering with surrounding USB ports. This mini bluetooth USB is easy to carry and does not take up space. The indicator light clearly shows the current pairing status. | Stable Seliability: Supports wireless communication with Bluetooth-enabled desktops, printers, phones, headsets, keyboards, speakers, and mice. Leverage bluetooth USB adapter low energy technology for energy-efficient wireless connectivity | Usage Notes: Please disable the driver of your previous Bluetooth device before use to avoid conflicts with our Bluetooth adapter driver.